Eruptions

i-70304c9e4d3e4b40952120288c14028f-Eyjaf5-2-thumb-400x323-48190.jpg
Webcam capture of Eyjafjallajökull erupting on May 2, 2010. You can see the steam plume on the middle flanks of the volcano – this is likely a lava flow coming from the summit vents.

A brief update on activity at Eyjafjallajökull:

Overnight, the lava flows from Eyjafjallajökull could be seen in the crater of the ice cap – some of the images posted by Eruptions readers are simply stunning. You can clearly see the red glow of the strombolian eruptions at the vent, and the glow of the lava flows as they had down the slope of the volcano. This has brought a lot of new melting to the snow/glacier on the volcano, and the evidence of that can be seen in the flooding near the volcano. Recent reports have indicated that the harmonic tremor at the volcano has increased today (icelandicenglish translation) as well (usually a signal that accompanies magma movement underground). However, there are so far no suggestions that the nature of the eruption has changed over the last eight days. This morning, you can definitely see the evidence of the lava flows working their way downhill with a large steam plume on the flanks of Eyjafjallajökull (see webcam image above).

UPDATE 12:15 PM EDT 5/2/2010: More news on the increased tremor, in icelandic and english.

{Hat tip to Jón Frímann, Woodson and others for links in this post.}

Comments

  1. #1 Philipp
    May 2, 2010

    two cars can be seen at the bottom of the left image:

    http://extras.vodafone.is/trailers/fimmvorduhals/mx10-4-235-80/2010/05/02/15/51.jpg

    they are stamding on the dark island in between the streams. In the sequence of images I have been downloading one can see them going back and forth, driving through the creeks.

  2. #2 Jón Frímann
    May 2, 2010

    The link to the Icelandic news is broken, as it has “br” in it for some reason, remove that and close the space and it should work fine.

    The harmonic tremor increase also shows up on my helicorder, even if there currently is some wind in the area that creates noise on my geophone measurements.

    http://www.simnet.is/jonfr500/earthquake/tremoren.htm

  3. #3 birdseyeUSA
    May 2, 2010

    might tremor rise have something to do with subsidence collapses in magma chamber?? don’t know enough to ask the right question…

  4. #4 Jón Frímann
    May 2, 2010

    According to Icelandic news on Rúv the harmonic tremors now are more then in the beginning of the eruption.

    http://www.ruv.is/frett/meiri-virkni-nu-en-i-upphafi-goss

    Google translation.

    translate.google.com/translate?js=y&prev=_t&hl=is&ie=UTF-8&layout=1&eotf=1&u=http%3A%2F%2Fwww.ruv.is%2Ffrett%2Fmeiri-virkni-nu-en-i-upphafi-goss&sl=is&tl=en

  5. #5 Erik Klemetti
    May 2, 2010

    Thanks for catching that Jón, I have fixed the link …

  6. #6 Dagur Bragason
    May 2, 2010

    Smoke ring captured on wep camera Vodafone yesterday.
    http://image30.webshots.com/31/7/58/10/244275810uqNuyG_fs.jpg
    Dagur Bragason Iceland

  7. #7 Dagur Bragason
    May 2, 2010
  8. #8 Philipp
    May 2, 2010

    @ Dagur #6

    I get a 403 – forbidden error when I try to access that image, at what time was the smoke ring visible?

  9. #9 birdseyeUSA
    May 2, 2010

    a very different view of the glacier for comparison – scroll down in article…
    http://www.scientificblogging.com/chatter_box/eyjafjallajökull_g%C3%ADgjökull_jökulhlaup_gosmökkur

  10. #10 Kyle
    May 2, 2010

    @ #1 Philipp

    Jesus christ i didn’t realise just how big those streams were, there more like lakes!

  11. #11 Mr. Moho
    May 2, 2010

    @9: Impressive… the glacier is hardly recognizable anymore.

  12. #12 Dan, Florida
    May 2, 2010

    @1 Philipp And I though I had a grasp of the size. I was wrong. I now understand the enormous sizes involved here. Thanks for that capture.

  13. #13 StarBP
    May 2, 2010

    “However, there are so far no suggestions that the nature of the eruption has changed over the last eught days.”

    Erik, you misspelled “eight”.

  14. #14 Scott, sg
    May 2, 2010

    Umm is it just me…or is that a seriously dumb place to try and drive cars?

  15. #15 tj
    May 2, 2010

    It looks like today will be a day of great changes. In just the past hour I have seen a new crack form along the middle right hand side of the glacier tongue (in the middle of the Thoro cam view) and now it is steaming as well. The opening at the bottom right seems to be collapsing, and I thought I saw wisps of steam towards the left, just above the vertical face.

    Now if Mother Nature would just cooperate a little bit, and clear those clouds out of there, lol I imagine all that steam and ash are creating it’s own weather there.

  16. #16 Diane N CA
    May 2, 2010

    Opps! I didn’t realize there was another thread started. :-) Oh well… I posted this on the thread of anniverseries:

    Back to Eyjaf (can’t keep my eyes off of it, LOL), I have noticed that water is emerging from the bottom of the what I would call the “silt, ash, glob, pond. I have seen this happen on a huge mound of what you would call a hill and the top was very dry, but where the river was, water was just streaming out from under this pile of rock, gravel, and dirt. It was a sight to see that as I had no idea water would flood out from under a hill!

    So any comments on that and the increase in tremor would be welcome. I do have a bit of a problem when I go to a site that is posted as a Google translation. Nothing comes up. Is there a way I can do something about that?

  17. #17 Reynir Heiðberg Stefánsson, .is
    May 2, 2010

    The links to RUV in the update are both without the protocol identifier (the http:// thing), so they look like links within the blog.

  18. #18 Dagur Bragason
    May 2, 2010

    @ Philipp #8
    The Smoke ring was captured from 16.10 to 16.16 GMT. 01.05.2010 on the Vodafone web camera: http://extras.vodafone.is/trailers/fimmvorduhals/mx10-4-235-80/2010/05/01/16/13.jpg
    I got this also on my camera:
    http://www.facebook.com/photo.php?pid=855532&l=ec9c3c05db&id=1657071051

  19. #19 Reynir Heiðberg Stefánsson, .is
    May 2, 2010

    #14: Not cars, Scott. Muscle jeeps. Rescue units use them a lot up here, usually painted white, like these two were.

  20. #20 Anna, Reykjavík
    May 2, 2010

    Scott (#14) This is a restricted area. But a team of geo-scientists went to take a look at Gígjökull yesterday, perhaps it’s their jeeps we’re looking at (Philipp: Is this screen capture from yesterday?)

  21. #21 birdseyeUSA
    May 2, 2010

    any hope of getting the voda cams to upload to picasa for today?

  22. #22 Dan, Florida
    May 2, 2010

    Well, I would take my old Jeep Wrangler there in a heart beat. ;)

  23. #23 Raving
    May 2, 2010

    @1 Philipp Surely you aren’t refering to i39.tinypic.com/qsjqjt.jpg
    :D

  24. #24 Kyle
    May 2, 2010

    Philipp’s screen capture is from today at 3:51pm GMT

  25. #25 Diane N CA
    May 2, 2010

    Anna, I figured it would be some geologists and others that were checking on the flood there. I didn’t see the cars, but I know it is a major flood of not only water, but a lot of mud and a lot of the water is seeping out under the mud.

    It would not be an area anyone would want to be in! Thanks for clarifying the issue of jeeps there.

    I did see a large movement on the cam just below that ice about half way down and I figured there was a good sized flow coming. I will have to get back to the cam…if I can see anything.

  26. #26 Reynir Heiðberg Stefánsson, .is
    May 2, 2010

    #22: Oh, those Jeepers! ;-)

    Aside: Try to google for ‘”arsol landi”‘. You should get back a reference to a rescue unit vehicle, a somewhat hunky Land Rover diesel.

  27. #27 Zander
    May 2, 2010

    Is that a hole in the glacier front ? There seems to be steam coming from it that wasn’t there earlier

  28. #28 Jón Frímann
    May 2, 2010

    @Erik, The link on the update is broken. It has scienceblogs.com/eruptions/ in front, where it should only be the original link. When people click on that link, they go fast nowhere on the internet.

    Too bad it is cloudy at the moment. There must be something interesting going on now at the top in Eyjafjallajökull.

  29. #29 Philipp
    May 2, 2010

    regarding the cars: yes it would be really stupid to drive a “car” up the Þorsmórk valley! But the vehicles in the image are more likely so called super-jeeps which can not only be used do drive across glaciers but also through rivers. The lack of bridges in the highland of iceland makes it necessary to customize 4WD vehicles to be able to use them, this is a typical vehicle of the Icelandic Björgungsarveit.

    http://lh5.ggpht.com/_CeTKUI7gs3E/S92y7ludGKI/AAAAAAAAQ6M/u60hv5nWLGw/s800/DSC_9309.JPG

    take note of the big tires, the custom suspension, the snorkel and the number of antennas for CB and satellite telephone.

    During summertime a scheduled bus drives that road (albeit it is a 4WD bus on a truck chassis).

    If you ever visit this area make sure to see the photo-album in the Langidalur hut where they keep a diary of all the cars, trucks and busses that didn’t make it through the Krossa river and had to be rescued.

  30. #30 stormymonday
    May 2, 2010

    I have fallen strangely in love with this volcano which has provided some stunningly beautiful images over the past few weeks. It is almost a living work of art

  31. #31 Anna, Reykjavík
    May 2, 2010

    “Philipp’s screen capture is from today at 3:51pm GMT”

    Either scientists or a team from 60 Minutes :)

  32. #32 Erik Klemetti
    May 2, 2010

    Both UPDATE links have been fixed now!

  33. #33 Philipp
    May 2, 2010

    @ 23 Raving, yes I am

    just search for “Iceland Superjeep” on youtube and will be able to see what these vehicles are used for.

  34. #34 Reynir Heiðberg Stefánsson, .is
    May 2, 2010

    #33: Oh, well.. There goes a blog reader lost for the next hour or two.

  35. #35 Kultsi, Askola, FI
    May 2, 2010

    Somebody said that the glacier tongue is about 180 meters wide; using that as a measure stick, the bisected “stone” is about 250 meters high, and the exit hole sixty meters in diameter. Very inaccurate measuring, so if you use yards where I used meters, the numbers are well within the error in measuring.

    Big, eh?

  36. #36 Scott, sg
    May 2, 2010

    Ok, so magic jeeps…doesn’t change anything. Over the years I have seen bigger vehicles including trucks washed away in flash floods. 45cm – 18″ of fast flowing water on gravel has killed plenty of people – and obviously will kill plenty more.

    Technically the wheels get washed out on the upstream side and they end up tipping over.

    Actually you just need to watch those – worlds most amazing idiots being rescued tv shows to see examples. In my case I grew up between Australia and UK, and every time there was flooding or risks, and the warnings go out…don’t try and drive through flood waters…

    Well a few days later you end up recovering the bodies. A landcruiser troop carrier – no problem got the snorkel mate – 3 days later as part of SES we had to recover the bodies of 2 adults and 2 children in North Queensland. It happens every time.

    When I was a boy at Holy Island in the UK, there used to be all bodies of wrecked cars where people thought they could beat the tide across the causeway… These days they at least recover the cars and remove the eyesore. The list goes on…

    So after being there and seeing it on numerous occasions. I can think of no sensible reason to be driving out there. Even for a science team I would imagine a chopper would be the sensible option.

    Could be just me though and maybe somehow driving in super jeeps across meltwater on volcanic gravel under a melting glacier is somehow ok.

  37. #37 Henrik, Swe
    May 2, 2010

    Once the glacier is gone it will be easy to see how Eyjafjalla split apart at some indeterminate point in time and how little mountain there is where the split occurred.
    (I know, guilty as chaged. I am like a dog with a bone on this one…)

  38. #38 Diane N CA
    May 2, 2010

    Zander #27 are you referring to the dark blob thing on the ice? I am thinking that may be a hole now instead of a rock, but it is hard to tell. There is steam coming from it now so anybodies is as good as mine. I have been watching that “blob” for a while and it has moved from the right on that ice to the left and now it seems to have moved down a bit. If it is a rock, look for it to fall sometime. The ice, too, for that matter.

  39. #39 birdseyeUSA
    May 2, 2010

    emilhannes.blog.is/users/03/emilhannes/img/gigjokull_619081.jpg

  40. #40 Zander
    May 2, 2010

    @Diane , yes there is steam venting from it, there id also a second hole slightly further up the glacier with steam also venting. Should see some collapses hopefully before dark.

  41. #41 Reynir Heiðberg Stefánsson, .is
    May 2, 2010

    #36: It is OK, for certain values of OK. You need at least two well-built tall jeeps, two drivers with years or decades of experience and good comms and self-rescue gear to be at least reasonably OK down there.

    There’s plenty of old jeepers, lots of bold jeepers, but very very few old, bold jeepers.

  42. #42 Raving
    May 2, 2010

    @37 Henrik

    That circular patterned rock face couldn’t be some ancient lava tube, could it? It seems as if Gígjökull is a caused more by a collapsed lava tube than the end product of glacial erosion.

    Don’t know. Just asking.

    i43.tinypic.com/syrnma.jpg

  43. #43 Raving
    May 2, 2010

    Ref for #42

    Google maps terrain
    static.panoramio.com/photos/original/13260384.jpg

  44. #44 Philipp
    May 2, 2010

    a short time-lapse showing the cars (and people!) doing their thing: http://www.youtube.com/watch?v=8HraIJIJghs

    @ Dagur: I absolutely love the smoke ring, Eyjaf is sure full of surprises!

    @ scott: I understand your reservations from the experiences you listed, but in Iceland people are doing it all the time. If you want to go to Thorsmörk you actually have to drive that road (you actually can take the bus!) and ford some rivers. I think it is mostly tourists with lesser cars and even less experience that become stuck in the rivers, but sometimes it happens also with bigger vehicles with experienced drives sometimes:

    lh5.ggpht.com/_CeTKUI7gs3E/S927lCsfBoI/AAAAAAAAQ6w/FaFmRMHdskc/s800/IMG_0381.JPG

  45. #45 Scott, sg
    May 2, 2010

    I have no problem with the jeeps, only driving them downstream of fast melting glacier which could create a surge at anytime.

    Afterall isn’t that what all of us around the world are sitting watching and waiting for…even me in Singapore where there is absolutely no chance of snow!

    Re. The water – and lack of it. Didn’t the Iceland met report say that the lead steam plume is actually hot water, and the second is from the lava flow?

    Which would mean there is still a lot of water to come down.

    And the other thing that confused me, was “30m from the crater lip”. Can’t remember the exact wording, but the other week I think they said 200m. So the level of lava has risen?

    Although I might have mistaken that.

  46. #46 Raving
    May 2, 2010

    @Philipp but there are 3 cars! (those puny ants) :)

    also fun when the tourists on those buses have to get out and help push.

  47. #47 beedragon Canada
    May 2, 2010

    I have a huge favour to ask! I have to go out for a while (maybe an hour) and the vodafone webcam is down so no pic archiving :(

    If anything exciting happens (like if the meltwater tunnel roof caves in!) will someone take some screen captures :)

    Thanks in advance!

  48. #48 Raving
    May 2, 2010

    Lava is falling!

  49. #49 Kultsi, Askola, FI
    May 2, 2010

    Looks like more meltwater is gushing out – very warm water.

  50. #50 Reynir Heiðberg Stefánsson, .is
    May 2, 2010

    #45: In the end, the magic is in the driver, not the vehicle, hence the fate of the bloonies you described upstream.

  51. #51 Henrik, Swe
    May 2, 2010

    @Raving (#42) I’m pretty convinced it is ice, not rock, but we shall soon see! Tell you what, I’ll bet you an e-Beer on it! ;)

  52. #52 Henrik, Swe
    May 2, 2010

    Haha! Well done, Raving (#43). I see I owe you an e-Beer!

  53. #53 Mattias Larsson
    May 2, 2010

    Yes I agree. There seems to be a lot of vater flowing down at the moment.

  54. #54 Diane N CA
    May 2, 2010

    I have been away from the computer for a bit and I see what looks like a huge boulder on the right side about halfway down on the mud flat. I don’t remember seeing it there before so if anyone has an idea what it is, let me know. It could be a dirty junk of ice. This is facinating to watch what will happen next!

    Phillip, thanks for that timelapse of the vehicules. That really put it in perspective! I knew it was no small puddle.

  55. #55 Kultsi, Askola, FI
    May 2, 2010

    There’s something that looks like an opening just on top of the split rock. The glacier face there sure got a steam wash…

  56. #56 Kris B
    May 2, 2010

    An awsome description of the eruption from above:
    http://vulkan.blog.is/blog/vulkan/entry/1050318/

    (some parts may be not so easy to translate metaphor)

  57. #57 Fireman
    May 2, 2010

    I’m seeing a lot of change, taking place quite fast, in the snout of the glacier; steaming holes, cracks, and melted recent snow cover. It wouldn’t surprise me to see a significant collapse there in the not too distant future, and possibly even incandescence in the next 24 hours. Remember steam rises, and has to find a way uphill and upstream to an exit, so there may be hot rock further down under the ice than is evident from the surface…

  58. #58 Reynir Heiðberg Stefánsson, .is
    May 2, 2010

    Looks like a burst of warm or hot water right now.

  59. #59 birdseyeUSA
    May 2, 2010

    tremors still on the upswing….hraun.vedur.is/ja/Katla2009/gosplott.html

  60. #60 JB US
    May 2, 2010

    60 Minutes US to Air EYJ (commercial US TV site)

    Once the EYJ story video is aired (do not have a date), then you’ll be able to watch the video ONLINE from your computer for a brief period of time.

  61. #61 stigger
    May 2, 2010

    UK 22:00 hours on Channel 4. The Volcano That Stopped Britain
    Documentary examining the background to the Icelandic eruption that caused extensive air-travel disruption across large parts of Europe in April, studying the geology of the Eyjafjallajokull volcano and the potential effects of ash on planes. The programme uncovers the true cost to the aviation industry and the economy in general, as well as considering the potential impact of further eruptions on the UK, Europe and the rest of the world
    There is an ‘on demand’ site on the web too (usually a delay)

  62. #62 Renato I Silveira
    May 2, 2010

    From what we’ve seen earlier this morning, the lava flow doesn’t clearly show. But the stream looks pretty muddy and the clouds – o the clouds! – they don’t let us see the huge amount of steam produced. Or, as someone said, the volcano is producing it’s own weather system.

  63. #63 beabea2000
    May 2, 2010

    Steam from Vodafone second camera

  64. #64 M. Randolph Kruger
    May 2, 2010

    I have a question for boris or erik or anyone who can answer this in a bit more than laymans terms. The glacier and volcano at Eyjaf is of course stunning, but i am interested in the flanks and how abrupt they are from the grade of the surrounding land.

    Is this the way that this weathered out, harder rock just surviving the weathering or is there something unique to this because the sides are incredibly abrupt. If weathering has/had occurred wouldnt it have gotten most of it, or is it that the rock is so much more dense? I see this all over Iceland with so many sheer cliffs around their volcanoes.

  65. #65 Volcanophile
    May 2, 2010

    Pretty view of boiling water cascading down Gigsjokulls glacier valley now..

  66. #66 Raving
    May 2, 2010

    @64 See en.wikipedia.org/wiki/Tuya

  67. #67 Woodson
    May 2, 2010

    Thanks for the kind comments Erik. I added a few more pictures from my trip yesterday to Eyjafjallajökull. The way things were going last night and with the steep slope the lava appears to be on now, things should be getting interesting in the near future. Seeing the volcano up close certainly beats a weekend of flooding back home in Tennessee.

    http://www.flickr.com/photos/49883902@N08/with/4570132526/

  68. #68 Essi
    May 2, 2010

    Góðan daginn!

    In the middle of exciting events I’m disturbing you with amateur questions.

    I read that last time Hekla erupted, they were able to tell in six o’clock news that it will erupt in 20 minutes. And it did erupt after 20 minutes.

    I’ve been wondering how did the volcanologists know that? There must be something else than watching tremours and earthquakes?

    Another question, do Icelandic volcanoes ever create violent pyroclastic flows? The flows of hot gas are devastating. Laki killed nearly a quarter of the island’s population but that was mostly because of volcanic ash? What if Katla would erupt soon, could there be fatal pyroclastic flows? Just wondering how far would a big eruption reach in the first hand, made some friends during my last Iceland trip and they don’t live far away from Katla.

    Thank you for this blog, I’m passionate about nature and volcanoes and have read this blog every day during last months. Especially after my second Iceland-trip – planned for last month – was “ashed” this blog has given me great relief :)

  69. #69 birdseyeUSA
    May 2, 2010

    @Reybi I think your hot bath is ready…

  70. #70 Volcanophile
    May 2, 2010

    Does anyone have a clue about the type of lava flow that is issuing from the crater now?

    Is it the same type (ropy lava to aa-type) as Fimmvörduhals, or is it a kind of blocky-lava/coulée-like viscous lava flow?

    Could that thing collapse down Gigsjokull valley and give off block-and-ash flows, like at Arenal?

    And is it possible that the lava flow interacting with the running water could cause phreatic activity, again like Fimmvorduhals?

  71. #71 Fireman
    May 2, 2010

    Very nice work Woodson but… if I may be so bold, why don’t you have higher resolutions up on flickr? Your highest is 1024 x 635, which looks a bit silly on my 2560 x 1440 display… virtually all cameras are capable of much higher resolution these days, and most people have the bandwidth to enjoy it.

    And yes, that former pretty lake is now a bloody steaming mess!

  72. #72 Holger, California
    May 2, 2010

    @Woodson #67,

    Great pictures, thanks for sharing. I’m very envious over here in California.

    At least we have the webcams and get a glimmer of the action every once in a while (would that be called arm chair volcanology?).

    Lots of steaming water on the alluvial fan now. It should affect the temperature readings further down in the river soon.

  73. #73 birdseyeUSA
    May 2, 2010

    @69 that was supposed to be Reynir, sorry….

  74. #74 Reynir Heiðberg Stefánsson, .is
    May 2, 2010

    … kin’ell… ! Sorry, but this is the first time I’ve seen the runoff water from Gígjökull actually steaming.

  75. #75 Fireman
    May 2, 2010

    @ Essi 68: Hekla is normally aseismic; they have enough history to be fairly sure about that. Unlike Eyjafjallajökull, you never see months or weeks of tremor prior to a Hekla eruption; once the tremors start at Hekla the eruption follows in an hour or two. Laki killed so many by starvation; the ass was fluorine rich, the food animals died of fluorosis, and the people died of starvation.

    @ Volcanophile 70: There was little phreatic activity at Fimmvörðuháls, the eruption was predominantly effusive with lava fountaining. The strong phreatic activity was in the initial phase of the summit eruption of Eyjafjallajökull. But I too would be interested to know if there’s been any change in chemistry since the present phase began.

  76. #76 GeorgeR
    May 2, 2010

    Jeepers the tremor chart has just gone insane. What’s up? Too bad it is all in fog. The amplitude of the tremors is the same as for the peak of the eruption; there is a whale of energy in there.

    It is especially interesting that the more distant sensors seem to be jumping as well as God.

  77. #77 Anna, Reykjavík
    May 2, 2010

    Fireman (#57)

    It will probably take the lava a couple of more days to reach the famous split boulder. This video was taken today and it gives a pretty clear idea of how things stand. (The RÚV website, you’ll need a Windows Media Player, some other players will do too).

    http://dagskra.ruv.is/sjonvarpid/4497980/2010/05/02/5/

  78. #78 Reynir Heiðberg Stefánsson, .is
    May 2, 2010

    #73: I think the whole lot of us could go bathing now.

  79. #79 Dan, Florida
    May 2, 2010

    If I remember correctly, when the actual eruption happened the 2-4Hz line (the blue line) shot up like a rocket, way above the other lines. Of course, I didn’t keep a copy of it, nor can I find it now. :(

  80. #80 Reynir Heiðberg Stefánsson, .is
    May 2, 2010

    A few huts in the right places… instant onsen and sauna… *starry-eyed*

  81. #81 Diane N CA
    May 2, 2010

    Hot mud bath anyone?!

  82. #82 GeorgeR
    May 2, 2010

    You can find the historical plot here

    http://hraun.vedur.is/ja/Katla2009/gosplott.html

    There is quite a bit of interesting info if you poke around in the parent directory:

    http://hraun.vedur.is/ja/Katla2009

    What is interesting is that the green line on the ESK sensor is at about the instantanious point of the initial eruption — but it is continuous.

  83. #83 beabea2000
    May 2, 2010

    @81, I heard this is healthy and makes beautiful skin ;-)

  84. #84 Kultsi, Askola, FI
    May 2, 2010

    Yes, pretty hot stuff coming into the sluice pond, in gushes. Could the steam in upper parts act like a giant percolator?

  85. #85 Volcanophile
    May 2, 2010

    @Essi…

    Icelandic volcanoes can and do produce pyroclastic flows, provided the eruption is explosive enough..

    Hekla is an excellent candidate for that, since its eruptions usually start with a massive plinian phase involving large volumes of highly fractionated magma (in 1947, it erupted about .18 km3 of andesitic pumice in about 6 hours, with a discharge rate of 75000 m3/sec and a plume height of 30km…)

    http://en.wikipedia.org/wiki/Hekla#Initial_eruption

    Should a column that big collapse, it’s more than enough to create pyroclastic flows on a massive scale….

    About Katla…. It’s usually basaltic, but the eruptions are highly explosive because of the meltwater involved… it’s in fact a beefed-up version of what happened there at Eyjaf during 14-16 April…

    This could also create pyroclastic flows, since laterally-directed blasts can happen, and “wet” eruptions columns rich in steam are more dense and more prone to collapse (base surge)

    Something like that, happened it the Azores during a submarine eruption in Capelinhos volcano island…

    http://www.vulcaodoscapelinhos.org/_images/fotoserupcao/29-09-1957.jpg

    The base surge is the steam “ring” expanding horizontally above the water level. Although not a “real” Péléan pyroclastic flow, it has the same destructive potential…

    Basaltic volcanoes are also capable of producing small-scale pyroclastic flows on their own, if the erupting magma is gas-rich enough and if the mass-eruption rate is high..

    Something like that happened at Stromboli in 1930
    http://www.photovolcanica.com/VolcanoInfo/Stromboli/Stromboli.html

    and at LLaima in 2008
    (again with water involved)
    http://www.povi.cl/llaima/images/my_1702108_a.jpg

  86. #86 Reynir Heiðberg Stefánsson, .is
    May 2, 2010

    Mebbe catch a few trout, too, and cook’em in the runoff?

  87. #87 beabea2000
    May 2, 2010

    Any idea how much ice is melting now?

  88. #88 Dasnowskier
    May 2, 2010

    Wow. The melt is now HUGE. I think the lava will break out in the next day or so

  89. #89 beedragon Canada
    May 2, 2010

    Last one in the hot tub’s a rotten egg ;P

  90. #90 Reynir Heiðberg Stefánsson, .is
    May 2, 2010

    Now she’s cooking on gas!

  91. #91 Dasnowskier
    May 2, 2010

    Last one in is not a rotten egg….They live if they don’t go in.

    Though I bet it smells like rotten egg.

    Vodaphone is down for me.

  92. #92 Reynir Heiðberg Stefánsson, .is
    May 2, 2010

    Just checked the RUV site. The current estimate is that the lava has ca. 1km (ca. 0.6mi) to go before it breaks into free air.

  93. #93 birdseyeUSA
    May 2, 2010

    tremors=boiling water???

  94. #94 Reynir Heiðberg Stefánsson, .is
    May 2, 2010

    melting ice + glowing lava = boiling water.

  95. #95 Renato I Silveira
    May 2, 2010

    Lot’s of hot stuff falling on the valley! On Þórólfsfelli cam.

  96. #96 Jon
    May 2, 2010

    Is it possible that a new vent is opening below the glacier?

  97. #97 peter
    May 2, 2010

    At low air-temperature and high humidity water may produce a lot of steam as you can see above lakes in winter. Surelly the water is not boiling,but comfortable for a bath.

  98. #98 Sofia
    May 2, 2010
  99. #99 birdseyeUSA
    May 2, 2010

    @93,96 I should have put : ) at the end…
    Vodaphone, please, please, picasa tomorrow? have been without your cam or picasa almost all day.

  100. #100 Renato I Silveira
    May 2, 2010

    Fantastic views on Vodaphone!

  101. #101 Reynir Heiðberg Stefánsson, .is
    May 2, 2010

    #98: No sweat. I forgot to add a semicolon-dash-thorn combo at the end of my #93 anyway.

  102. #102 Anna, Reykjavík
    May 2, 2010

    That split boulder in the middle, that’s tuff.

    Seems to me it’s disintegrating …

  103. #103 Reynir Heiðberg Stefánsson, .is
    May 2, 2010

    This must be Gígjökull is feeling…

    http://www.youtube.com/watch?v=eiZdygKwe-8

  104. #104 Gina Ct
    May 2, 2010

    Re 84 yes it could act as a percolator it just needs the geometry of the plumbing to be right it was acting like a percolator last week then it calmed down when the exit vent got eroded away
    it could be made with spare plumbing things if one wanted to]

  105. #105 birdseyeUSA
    May 2, 2010

    if nothing else by the end of the excitement I should have ‘Ormurin Langi’ memorized, all 86 verses…

  106. #106 Gina Ct
    May 2, 2010

    most Tuff i have seen is fairly easy to erode especially if it is not a welded tuff but even that succumbs to moving water and faster if the water has a high load of abrasives in it

  107. #107 Renato I Silveira
    May 2, 2010

    I think lava is reaching Markarfljót. Let’s see what the coming night will show us.

  108. #108 Birger Johansson
    May 2, 2010

    # 41: “There’s plenty of old jeepers, lots of bold jeepers, but very very few old, bold jeepers.”
    The same was said about test pilots…..some truths are universal. It occurs to me, before appointing people to really sensitive jobs -like nuclear plant managers- we should let them try driving landrovers in this type of terrain. :-)

    Speaking of excessive boldness, a couple of weeks ago a Swedish tourist was killed by falling 150 m. into a crater in Indonesia, after going too near the edge. I do not know any details of the incident, but if the tourist was used to our 2-billion-year old Swedish granite he might have overestimated the strength of the material he was stepping on.
    What are the inner volcanic crater walls usually built of? Is it successive layers of lava and ash, or is it ash all the way, with just a smattering of lava blobs thrown in? I realise the ash and the lava ultimately are made from the same substance, but a wide chunk of lava that has slowly solidified must be way safer to step on than ash.

  109. #109 Kultsi, Askola, FI
    May 2, 2010

    #104 One prolly should not translate that as ‘Long Schlong’? ;)

  110. #110 matt p
    May 2, 2010

    program on eyjaf on channel 4 uk now…. Not sure if other countries can get it on 4on demand. ‘the volcano that stopped britain’

  111. #111 birdseyeUSA
    May 2, 2010

    @108 http://www.youtube.com/watch?v=eSD0vRFhloI&feature=related
    ref. background music for eruption video (different singers,) posted several days ago

  112. #112 Reynir Heiðberg Stefánsson, .is
    May 2, 2010

    Looks like a four-by group is returning from the glacier.

  113. #113 Dan, Florida
    May 2, 2010

    Going to interesting to see what dark brings. Where will it glow tonight?

  114. #114 Leifur
    May 2, 2010

    There are now three 4x4s parked on the road upstream of the alluvial fan – with the occupants taking a stroll for a better view. Certainly a very popular restricted area …

    Like the ones observed earlier these will have crossed Markarfljót and Krossá (probably separately) and then Steinsholtsá – all of which should be reasonably easy at this time of year.

  115. #115 Gina Ct
    May 2, 2010

    Hvolsvelli is showing a large black plume clawing it’s way up to 20k feet

  116. #116 Henrik, Swe
    May 2, 2010

    21.40 GMT. Eruption column very broad at the base albeit not very high(?) looking through a gap in the clouds on the Hvolsvelli cam. Looks as if more than one vent may be active.

    The link in #97 – go to it and there’s a plot of the tremor from the beginning of the current eruption – today. Very interesting to look at! It is perplexing that the eruption, which has gone on for 2½ weeks now, seems to be gaining in strength even if the amount of magma that makes it to the surface isn’t that much. Erik, Boris, EKoh, Gijs, Heidi or any other professional?

  117. #117 Reynir Heiðberg Stefánsson, .is
    May 2, 2010

    Yech. It’s totally hippsumhapps if you get served by the Vodafone cams or not. The server has to be getting a lot of clamouring from impatient web browsers.

  118. #118 Dan, Florida
    May 2, 2010

    @116 Reynir I’m guessing hippsumhapps is an Icelandic term? lol I gave up on Vodaphone cam, rather not try than to keep getting frustrated.

  119. #119 Henrik, Swe
    May 2, 2010

    22.15 GMT front of the lava flow now visible in Thorolfsfelli cam.

  120. #120 Suw
    May 2, 2010

    Is it me, or did a rather large orange glow suddenly appear at the vent?

    eldgos.mila.is/eyjafjallajokull-fra-fimmvorduhalsi/

    Wasn’t there a minute or two ago, and looks a bit bigger than the normal night-time glows.

  121. #121 Reynir Heiðberg Stefánsson, .is
    May 2, 2010

    #119: It’s not just you.

  122. #122 stigger
    May 2, 2010

    #119: yes very large glow visible now @ http://eldgos.mila.is/eyjafjallajokull-fra-fimmvorduhalsi/

  123. #123 Randall Nix
    May 2, 2010

    Wow…..I go to the beach and when I get back everything has changed.

  124. #124 sunday
    May 2, 2010

    Looks like an advancing lava flow.

  125. #125 Suw
    May 2, 2010

    It’s getting pretty impressive now. Is this a camera-doesn’t-lie-but-it-does-fib moment when it looks more substantial than it is? But this doesn’t look like the normal night-time cloud of glowing steam to me – it looks far larger…

    Could it be:

    The lava flow has finally evaporated all the ice on top of it and is now illuminating the steam?

    or

    Current vent has expanded into view of the camera?

    Or

    A new vent has opened up?

    or

    Small pixies with brushes loaded with orange paint are vandelising the web cam?

  126. #126 Viktor, Budapest
    May 2, 2010

    Amazing, this magma seems to pour directly onto Gigjökull now.
    Massive steam at the top and it is triggering kind of jökulhlaup at the bottom.

  127. #127 Jón Frímann
    May 2, 2010

    This looks bigger then lava flow. But it might be lava but it is glow is just fooling us. Hard to know for now. The harmonic tremor levels have dropped a little over the past few hours, but the still remain high at this moment.

  128. #128 eddie, glasgow
    May 2, 2010

    Thorolfsfelli is amazing right now. Looks like the fire fountain source is this side of the hillather than in the caldera.

  129. #129 Reynir Heiðberg Stefánsson, .is
    May 2, 2010

    Looks to me like some direct but mostly reflected glow.

  130. #130 Reynir Heiðberg Stefánsson, .is
    May 2, 2010

    Massive overexposure where the light is strongest. Yep, it’ll take a lot of squinting to tell which witch is which.

  131. #131 Randall Nix
    May 2, 2010

    Yeah with lots of steaming water coming down and making it to the valley floor….they better evacuate downstream…Looks like Erik is going to need to do another blog update.

  132. #132 sunday
    May 2, 2010

    Looked like the bright yellow glow was moving towards Thorolfsfelli camera. I was expecting to see the Icelandic answer to Niagara falls, but with molten lava.

    However, it could be also a reflection of a new or enlarged vent in the steam clouds.

    Hope that a Icelandic TV network dispatchs a camera team -HDTV would be icing on the cake- to Thorolfsfelli.

    Regards from Volcanic-sleeping Spain!

  133. #133 Alastair
    May 2, 2010

    That glow on the http://eldgos.mila.is/eyjafjallajokull-fra-fimmvorduhalsi/ camera is slowly growing as we watch, and I’m seeing what appears to be occasional bursts or reflections of red from below some of the mid-glacier steam plumes. Is it a trick of the fading light, or actual lava flow?

  134. #134 Woodson
    May 2, 2010

    Thats steam reflected glow of lava deeper in the crater. The positioning of the Porosfelli cam is such that it can not see the crater floor. The Mila cams have better low light sensitivity than the Vodafone ones (which dont see much right now). I think the reason it is brighter is that there is more lava flow in the crater and the area of glacial melt is much larger and has been progressively moving away from the vent towards the camera.

    No worries about evacuation. Nobody lives downstream although they might need to breach Rt 1 again.

  135. #135 Reynir Heiðberg Stefánsson, .is
    May 2, 2010

    Really too bad that the cameras that Míla has have to be reset by a lineman’s hand.

  136. #136 beedragon Canada
    May 2, 2010

    I’m voting for actual lava flow on the Thorolfsfelli cam.

  137. #137 Suw
    May 2, 2010

    I’m not sure that this is just glow from the original crater, as that showed up much further to the right than this current event. It appeared very rapidly, over the course of about 10 – 15 minutes, and seems not to be moving downhill, although there are occasional glows left-and-down-a-bit (that’s technical language if ever I saw some!).

  138. #138 Reynir Heiðberg Stefánsson, .is
    May 2, 2010

    Clouds. Why did it have to be clouds?

  139. #139 Reynir Heiðberg Stefánsson, .is
    May 2, 2010

    #135: As am I.

  140. #140 stigger
    May 2, 2010

    #135, #138 me too

  141. #141 Zander
    May 2, 2010

    Picassa gallery is now uploaded

  142. #142 sunday
    May 2, 2010

    There are two distinct glows: the main one, and other, intermittent, lower, and to the left. It’s possible that the second glow is not a reflection.

  143. #143 Reynir Heiðberg Stefánsson, .is
    May 2, 2010

    Ahh… so that’s probably why folk reported green glow from Thora–the cam’s control circuits can’t deal well with light at this level.

  144. #144 Shelly
    May 2, 2010

    #135, 138, 139

    Me three.. :)

  145. #145 beedragon Canada
    May 2, 2010

    Before it got too dark, there seemed to be a dark inverted triangle (possibly a rock) just below the largest glowing area. It looked like the lava was flowing down to, and around the rock, emerging on the left hand side.

    I’m hoping we’ll get to see a little more before bedtime … I’ve got about 3 hours left :)

  146. #146 Reynir Heiðberg Stefánsson, .is
    May 2, 2010

    http://s878.photobucket.com/albums/ab348/Reynir_Heidberg/Gigjokull%20_evening_20100502/

    This album should be ready soon. Captures from Thora between 22:31 UT and 23:08 UT.

  147. #147 Reynir Heiðberg Stefánsson, .is
    May 2, 2010

    Looks like the pix are all there.

  148. #148 Jón Frímann
    May 2, 2010

    According to the news, they now believe that the lava has started to flow close the edge of the glacier.

    http://www.mbl.is/mm/frettir/innlent/2010/05/02/hraunid_rennur_fram/

  149. #149 stigger
    May 2, 2010

    the image is clear; the glow is quite bright and very yellow/green

  150. #150 sunday
    May 2, 2010

    Translation of text linked in #147

    “Visual Witnesses who I spoke to a few minutes to consider the lava is starting to slide out the ice bar,” said Atli Olafsson policeman tracks in an interview with news newspaper, mbl.is. Red bjarmi seen by Gígjökul and is even believed that the lava is starting to run out there.

    Significant force in the eruption and scientists believe that considering the status of the Mac years of steam rising from the lava as it meets the periphery of the ice has today been in the 850 meters at Gígjökli, about 3 km north of gigs. Gufumekkir from ice at the edge. 19:40 indicated that the lava even go beyond that rhymes with now seen lighting the twelfth time.

    “The glacier, which flows from Gígjökli is boiling hot and steaming rýkur much of it,” said Atli Olafsson who was on patrol in the area earlier in the evening.

    It is difficult to assess the lava flow of the glacier, according to earth scientists. Rough guess of the lava flow is 20 meters per second and is evaluated based on the length and width of the lava current Gígjökli in one hand and the flow of water, however.

    Ash eruption is thought to be much lower, 10 to 20 tons per second. The explosive activity has also increased in recent days, but is uncertain whether the lava flow has increased. There is no evidence gosloka.

    End translation.

    So… Icelandic Mustafar tonight or tomorrow?

  151. #151 Anna, Reykjavík
    May 2, 2010

    “Rough guess of the lava flow is 20 meters per second”

    What utter nonsense.

  152. #152 Anna, Reykjavík
    May 2, 2010

    They’re probably talking about 20 tonnes per second (coming out of the crater).

  153. #153 sunday
    May 2, 2010

    It should be noted that the translation was done using Google. Perhaps in Icelandic the cubic in cubic meter tends to be omitted. Dunno.

  154. #154 Anna, Reykjavík
    May 2, 2010

    Sunday, Google translations are largely nonsense (when it comes to Icelandic, that is) but it actually says 20m/sec in the original.

  155. #155 Chris, Reykjavik
    May 2, 2010

    I guess it should mean 20 cubicmeters per second. Which would be consistent with the estimates from the volcanologists.

  156. #156 Diane N CA
    May 2, 2010

    Well, I can’t see anything on the cams. Is it a case of wait for some glow or have the clouds done us in?

  157. #157 birdseyeUSA
    May 2, 2010

    all the tremors seem to be coming down now – as of about the time the hot/warm/steaming water broke out.

  158. #158 PeakVT
    May 2, 2010

    This is a nice set of photos from just south of Eyjafjallajökull:
    http://www.flickr.com/photos/leifi/4527422779/in/set-72157623874162612/

    Lava has been reported to travel as fast as 100 km/h, though it is unusual:
    en.wikipedia.org/wiki/Lava_flow#Hazards

  159. #159 Melissa Lowman
    May 2, 2010

    Hope some of the US people got to catch the NatGeo episode tonight. Not sure if it was the first one aired, but they had some great images and good coverage of the Volcano and the flooding downstream.

  160. #160 Jen
    May 2, 2010

    All of the Míla cams seem to be down at the moment. What is all that weirdness on the Hvolsvelli camera, did the lens crack?

  161. #161 Jón Frímann
    May 2, 2010

    @Jen, They are not down. It is just darkness. But there should be dawn in less then hour from now or so. The web camera that is showing Hvolsvoll is just reflecting the floodlights.

    Currently the harmonic tremors have started to increase again, for some strange reason.

  162. #162 Diane N CA
    May 2, 2010

    Melissa #158 I saw a NatGeo film last night that showed how the guys got stuck and they did get some very good info and it was a pretty good program. Is that the one you are referring to? I know there is going to be another one that covers the eruption a bit differently so I would like to know the one you are referring to.

    Thanks.

  163. #163 Fireman
    May 2, 2010

    Jón has the right idea; you’re all spoiled with these webcams! Real geologists watch volcanoes erupt by looking at wiggly lines :-)

    I’m offline for 24 hours – off to Pittsburgh to buy a car – so have fun and hope I don’t miss much! Then, with luck, back to Iceland next week – and I promise to take a thermal imager!

  164. #164 Diane N CA
    May 2, 2010

    Melissa, I forgot to mention the name of the program was Naked Science, I think.

    Jen, #159, the weird figures you see on the Hvol cam are due to the lights as Jon said. They are called “circles of confusion” in photography. I did some photog and I got some pretty weird figures that I processed. I did it on purpose, though some people get them and don’t know it until the film is develped. Digital cams have taken away a lot of that problem because you can see the pic on the screen before you take it. Makes for some interesting pic sometimes. :-)

  165. #165 Jón Frímann
    May 2, 2010

    Currently there is almost no wind at all (0.4 m/s). But my helicorder is getting a bit crazy it seems. That is in fact the harmonic tremor from the eruption in Eyjafjallajökull.

    http://www.simnet.is/jonfr500/earthquake/tremoren.htm

  166. #166 Diane N CA
    May 2, 2010

    Wow ,Jon. It certainly is going crazy. Do you have any idea what it means? I guess it is hard to say what is going on when you can’t see anything! Not fun, but maybe in about an hour we will be able to see what is going on and, hopefully, there will be good visibility.

    Thank you for posting that.

  167. #167 Helen Leggatt
    May 2, 2010

    Interesting article: http://www.physorg.com/news191397828.html

    Scientists find ancient asphalt domes off California coast

    “They paved paradise and, it turns out, actually did put up a parking lot. A big one. Some 700 feet deep in the waters off California’s jewel of a coastal resort, Santa Barbara, sits a group of football-field-sized asphalt domes unlike any other underwater features known to exist.

    About 35,000 years ago, a series of apparent undersea volcanoes deposited massive flows of petroleum 10 miles offshore. The deposits hardened into domes that were discovered recently by scientists from the Woods Hole Oceanographic Institution (WHOI) and UC Santa Barbara (UCSB).”

  168. #168 Jón Frímann
    May 2, 2010

    @Diane, All that I know is that this means that the eruption is getting more powerful as the tremor increases. So far, this spike looks bad on my sensor, but it also appeared on IMO sensors and even better there then on my sensor.

    This is not good. But what it means is hard to know at the moment.

  169. #169 birdseyeUSA
    May 2, 2010

    good night all,let’s hope that whatever is brewing is interesting but not bad news for Iceland.

  170. #170 Renato I Silveira
    May 2, 2010

    Is that daylight showing the plume (or just clouds)on Katla cam? http://www.ruv.is/katla/
    And I don’t know if the light that keeps appearing to the upper left of the screen is our volcano’s eruption.

  171. #171 Raving
    May 2, 2010

    [pin drop]

  172. #172 Raving
    May 2, 2010

    Twilight.

    Hvolsvelli webcam is getting lighter now

  173. #173 Dan, Florida
    May 2, 2010

    @169 Renato I think it’s all clouds being brightened up by the dawn.

  174. #174 Renato I Silveira
    May 2, 2010

    @ Dan
    Heavy clouds, huh?
    How about the situation at the Gulf, Dan?

  175. #175 Helen Leggatt
    May 2, 2010

    Seems very dense cloud/fog – all cams usually have outlines by now

  176. #176 JB US
    May 2, 2010

    US Nature: Public Broadcasting
    Kilauea: Mountain of Fire Hawaii

    Watch the Video Online for this Show
    http://www.pbs.org/wnet/nature/episodes/kilauea-mountain-of-fire/video-full-episode/4825/

  177. #177 Dan, Florida
    May 2, 2010

    @Renato Þórólfsfelli and Valahnúk both still coal black. Hvolsvelli has a solid blue/black background and Mulakot still too dark to tell. But I think this may not start off as a good viewing morning there.

    The oil keeps changing where it is going, Winds, waves and tides have them guessing where it will go. Still nothing has worked to stop the leak. Booms that have been set out all over the coast are being pushed around hard by heavy surf and seas. In other words, we are still clueless about what the effects are going to be.

  178. #178 Ragutis
    May 2, 2010

    From the Múlakot cam, it looks like a layer of clouds right around the snow line.

  179. #179 parclair, NoCal
    May 2, 2010

    @Helen 167. It doesn’t surprise me that there are domes of gunk off of Santa Barbara. I spent a summer there, and every day after the beach I had to clean globs of crude oil off my feet. SB has naturally occurring oil spills. But, nothing on the scale of Alaska or Gulf Coast.

  180. #180 Grothar, FL
    May 2, 2010

    Er det noen her? Må vi skriver på engelsk her? Jeg bor i Florida.

  181. #181 mike
    May 2, 2010

    High harmonic tremor accompanied by deflation of the volcano suggests to me that the eruption rate has increased.

  182. #182 Raving
    May 2, 2010

    Personlig, jeg bor i Canada. God kveld

  183. #183 Grothar, FL
    May 2, 2010

    Mike, to which volcano are your referring? I hope not Katla. Does anyone have any current info on it. Between the disaster in the Gulf of Mexico and the situation in Iceland, we should be very busy passing information. All good, I hope.

  184. #184 Dan, Florida
    May 2, 2010

    Made me use Google translator eh? LOL

  185. #185 Raving
    May 2, 2010

    hraun.vedur.is/ja/gps/predorb/gola_enu_p.png
    hraun.vedur.is/ja/Katla2009/oroi_snb.html
    :-|

  186. #186 Diane N CA
    May 2, 2010

    Helen 167, sounds like knock-offs from the La Brae Tar Pits. I bet the same type of thing created them as the asphalt off the coast. They get asphalt on the shores of the Dead Sea all the time and they don’t know what to do with it. I bet at one time, the asphalt was on land.

    Well, fiddle. Everything seems fogged in, or vogged in as the case may be. I hope it will clear up later so we an see something.

    It is time for me to turn in so keep watching. Maybe you will see what I want to see and have to miss until morning. :-)

  187. #187 Grothar, FL
    May 2, 2010

    HA, I know Dan from another site. Very informative person and well traveled. Provides many of us good information. The volcano has fascinated many people in the United States, unfamiliar with the history of Iceland. It has become a thing to do at some gatherings to see who comes closest in the pronunciation of the names. Is there any indication of further activity in any others? (God kveld, Raving)

  188. #188 Renato I Silveira
    May 2, 2010

    #176
    Dan, I heard there’s a possibility that the leak will be driven to the ocean by winds and currents so it may decay far from the coast. I hope it may.
    #179 Det er mange mennesker fra Florida her. You may speak English.

  189. #189 Renato I Silveira
    May 3, 2010

    Well i think I’ll just go to bed and come back to see if the clouds will be gone by then. Bons sonhos!

  190. #190 Dan, Florida
    May 3, 2010

    @187 Renato Three days ago they said it would be on ours shores at the Alabama Florida state line. Yesterday they said maybe Wednesday, now they say north wind will push it out. I don’t think THEY have any idea right now. It moves however it feels regardless of winds and waves.

    Hey Grothar. Katla so far remains quiet. We have been watching Eyjafjallajökull, although apparently not tonight with the cloud cover.

  191. #191 Fireman
    May 3, 2010

    Well we can now see what Eyjafjallajökull has spent the night doing… boiling water!

    “…Isengard looked like a huge flat saucepan all steaming and bubbling…”

  192. #192 Ragutis
    May 3, 2010

    Meltwater looks about the same as yesterday, maybe a touch lower.

  193. #193 Paul
    May 3, 2010

    - Get ready for decades of Icelandic fireworks… Undersea volcano threatens southern Italy: report… Immanuel Velikovsky, Worlds in Collision – Planet X, Volcanoes activation and their eruption, 3600 years ago… ECOLOGICAL EVIDENCE from Previous PLANET X Passages… NASA: Sun’s Nemesis Pelted Earth with Comets, Study Suggests… NewScientist: ‘Dark sun’ is one of our nearest neighbours… National Geographic (November 19, 2008): “MYSTERIOUS ASTROPHYSICAL OBJECT that’s bombarding Earth with cosmic rays, researchers say”:
    http://cristiannegureanu.blogspot.com/2010/04/get-ready-for-decades-of-icelandic.html

  194. #194 d9tRotterdam
    May 3, 2010

    Eyjafjallajökull time lapse 5 May 2010 4.00am to 4.28pm

    http://www.youtube.com/watch?v=yel6QwHQAr4

    Images from webcam http://www.vodafone.is/eldgos/en

  195. #195 kksl
    May 3, 2010

    tnks

  196. #196 danckel
    May 3, 2010

    @d9trotterdam: thanks.

    After a relative quiet period there was a series of 5 EQs again at different depths:
    en.vedur.is/earthquakes-and-volcanism/earthquakes/myrdalsjokull/#view=table

  197. #197 Kultsi, Askola, FI
    May 3, 2010

    #193 At hi res and full screen it’s easy to see how the are above split rock deforms: it sinks, break lines appear in a big circle, new steam holes open… Apparently, watching a volcano cook is like watching the grass grow – time lapse gives a much better idea.

  198. #198 Alison UK
    May 3, 2010

    There were 2 earthquakes reported in the area this morning.
    Monday 03.05.2010 05:09:49 63.620 -19.605 18.0 km 1.6 90.01 8.8 km SW of Básar
    Monday 03.05.2010 05:09:48 63.657 -19.626 1.1 km 1.8 34.97 7.5 km WSW of Básar

  199. #199 Alison, UK
    May 3, 2010

    I’m sorry, I’m still half asleep, 5 earthquakes in the area.
    Monday 03.05.2010 05:09:49 63.620 -19.605 18.0 km 1.6 90.01 8.8 km SW of Básar
    Monday 03.05.2010 05:09:48 63.657 -19.626 1.1 km 1.8 34.97 7.5 km WSW of Básar
    Monday 03.05.2010 05:05:59 63.648 -19.618 2.7 km 1.9 90.01 7.5 km WSW of Básar
    Monday 03.05.2010 05:03:26 63.630 -19.566 17.1 km 1.9 85.98 6.7 km SW of Básar
    Monday 03.05.2010 04:59:18 63.642 -19.602 18.5 km 1.8 90.01 7.1 km WSW of Básar

  200. #200 sunday
    May 3, 2010

    Re #198: Yep. See hraun.vedur.is/ja/skjalftar/myrjokull.html

  201. #201 Daniel
    May 3, 2010

    The fact that 3 out of 5 EQ´s is at 17-18km depth can that be an indication of yet another magmachamber beeing restless? Or can it be the one feeding the volcano from the beginning?

  202. #202 Mr. Moho
    May 3, 2010

    Thorolsfelli and Vodaphone webcams are clearing up a bit at the moment.

  203. #203 motsfo
    May 3, 2010

    And those 5 earthquakes run right down the glacier flow.
    Could the change in the glacier’s weight have disrupted
    some magma chamber below?
    And i hate being right… remember when i said:
    “When something happens at a volcano, that’s when You
    can’t see it?”
    nuts….
    i hope the weather clears soon.
    my daughter said i may have to undergo separation anxiety
    sessions when this volcano gets done.
    snif,snif.
    Best!motsfo

  204. #204 Viktor, Budapest
    May 3, 2010

    @motsfo (202)
    I don’t think glacier melt can trigger EQs in such depths, max 0,5km, but perhaps this is also exaggarated.
    Viktor

  205. #205 AndrewN
    May 3, 2010

    For those interested the Channel 4 program ‘The Volcano that Stopped Britain’ is available on youtube: http://www.youtube.com/watch?v=uHsHxPW_T9Q. For those in the know about volcano’s it is probably very simple stuff, but there are some very spectacular shots of the volcano erupting. The narrator can also pronounce the name which is even more impressive :).

  206. #206 Willy
    May 3, 2010

    Many Volcano webcams from the world….
    http://www.abcwebcam.net/keyword-webcam-volcano.html

  207. #207 Renato I Silveira
    May 3, 2010

    #204 Youtube says the program has been blocked do to copyrights… Thank you anyway.
    And all those clouds…

  208. #208 Mr. Moho
    May 3, 2010

    I don’t know if anybody noticed, but the number of earthquakes detected in that short period of time has been increased to six:

    03.05.2010 05:09:49 63,620 -19,605 18,0 km 1,6 90,01 8,8 km SV af Básum
    03.05.2010 05:09:48 63,657 -19,626 1,1 km 1,8 34,97 7,5 km VSV af Básum
    03.05.2010 05:05:59 63,648 -19,618 2,7 km 1,9 90,01 7,5 km VSV af Básum
    03.05.2010 05:03:26 63,630 -19,566 17,1 km 1,9 85,98 6,7 km SV af Básum
    03.05.2010 04:59:18 63,633 -19,615 15,8 km 1,7 99,0 8,2 km SV af Básum
    03.05.2010 04:58:05 63,631 -19,614 15,7 km 1,8 99,0 8,3 km SV af Básum

  209. #209 Chris, Reykjavik
    May 3, 2010

    Whats interesting here, that some of these quakes happen really deep. I would like to here an interpretation of this by someone who has knowledge in this field.

  210. #210 Suw
    May 3, 2010

    @renato #205 The video is the official Channel 4 ‘On Demand’ YouTube channel, so it might be blocked to people outside the UK.

  211. #211 Renato I Silveira
    May 3, 2010

    My question is: How deep is the magma chamber that’s supposed to feed both Eyjaf and Katla, if that should be the case?

  212. #212 snotra viking
    May 3, 2010

    @motsfo (202) I get hints from my partner that he thinks I´m too interested (read: struck) in this volcano. I can´t help it, I just think it´s amazing.

    He actually asked me yesterday after one day away if I had “Volcano abstinence” when I took the laptop with me in bed. :)

    Now if some vulcanologist could give us a theory whats behind the tremors and what these EQ:s means. Is the plate separation going right through Eyjafjall? Is it therefore it´s so high, just next to the lowlands? (I have lived in the lowlands between Hvolsvellir and the sea, they are purely ashmade I think, no rocks or at least very few.

  213. #213 Renato I Silveira
    May 3, 2010

    @Suw Yes, that’s what they say. :(
    I’m going to work now. Something is going to happen – that’s what she always does when we are away. Like a little child. You turn your back, and there she goes. Just ask you folks to keep the nice pics for later.

  214. #214 Zander
    May 3, 2010

    Can any Icelanders tell me when or if the weather is going to clear ?

  215. #215 Mr. Moho
    May 3, 2010

    I’m not an icelander, but you might want to take a look at this page: http://www.vedur.is/vedur/spar/stadaspar

  216. Re: the Channel 4 documentary “The volcano that stopped Britain”, I found a site where this can be downloaded (I don’t know how long it will last so I’d say hurry up)

    http://www.dedicatedtv.net/downloads/uncategorized-s784/the-volcano-that-stopped-britain-ws-pdtv-xvid-ftp-d54117.html

  217. #217 Chris, Reykjavik
    May 3, 2010

    @Mr.Moho, #213: You can look here for the forecast: http://en.vedur.is/weather/forecasts/areas/

  218. #218 Zander
    May 3, 2010

    @ 213 thanks man, it doesn’t look to promising.

  219. #219 beedragon Canada
    May 3, 2010

    Well, from what I can barely make out on the vodafone cam, it looks like not much has changed since last night. There’s still steam coming out of the main chute, but the water doesn’t appear to be ‘boiling’ like it was yesterday. I don’t know if we’d see that with all the vog or not, but I don’t think it is.

    If anyone here, knows anybody with clout, can you please tell them it’s supposed to be summer in Iceland, and could they please turn the sun on :)

  220. #220 birdseyeUSA
    May 3, 2010

    @193 thanks for the video, was without voda yesterday,that’s a big help

  221. #221 Mattias Larsson
    May 3, 2010

    At the moment it is hard to say when it is going to clear up. The forecast looks pretty cloudy. I would say that it is unlikely with any good views today, with a bit of luck there might be some, probably quite short, moments with good views tomorrow or on wednesday.

  222. #222 Chris, Reykjavik
    May 3, 2010

    @Boris: Thanks for the link.

  223. #223 Helen Leggatt
    May 3, 2010

    Masses amounts of water currently being ejected on Voda cam

  224. #224 Mr. Moho
    May 3, 2010

    @Renato I Silveira (209):

    Regarding that I found this, but it might probably not explain the origin of the last 17-18 Km deep earthquakes:

    http://www2.hi.is/myndir/1016292?11434

  225. #225 Zander
    May 3, 2010

    Looks like someone’s up to have a look on the vodafone cam.

  226. #226 Mattias Larsson
    May 3, 2010

    It is probably hard for anyone to guess the exact reason for those earthquake. But I guess it could be possible with some movement of magma on deep levels. We have to keep our eyes open for more of those deep EQ:s. I wonder if it is possible that a possible magma body at 15-20km could feed both Eyjafjallajökull and Katla? It is probably impossible to be sure on the answer to that question so I just post it as a reflection.

  227. #227 jp
    May 3, 2010

    the vision from vodafone is bright enough i think maybe LAVA find a another path maybe a cave or a chamber

    butfor me there is no magma on the top of the fall anymore

  228. #228 Mr. Moho
    May 3, 2010

    There was a small debris collapse into the lake just now, visible on Vodafone cam.

  229. #229 Reynir Heiðberg Stefánsson, .is
    May 3, 2010

    Been listening to radio news on Bylgjan. Estimated 50 tn of lava per second now.

  230. #230 Zander
    May 3, 2010

    Clear spot on Thorolfsfell cam

  231. #231 jp
    May 3, 2010

    I see 2 Vent of black fume on the top do you see ?

  232. #232 Reynir Heiðberg Stefánsson, .is
    May 3, 2010

    Hum… Black plume from the crater, white plume from the lava?

  233. #233 Mattias Larsson
    May 3, 2010

    Wow. Nice view on vodafone cam to. The plume looks quite large now.

  234. #234 sunday
    May 3, 2010

    #229 Only a illusion. There was a time when seemed to be two black plumes, but only because clouds hid the lower part of the unique black plume

  235. #235 Reynir Heiðberg Stefánsson, .is
    May 3, 2010

    Since we won’t see any fire glow until tonight, we’ll have to look for side effects, like the glacier collapsing into itself to see where the lava stream is already. Oh fun.

  236. #236 Zander
    May 3, 2010

    Wow ! She seems pretty angry today. I wonder what’s in store.

  237. #237 birdseyeUSA
    May 3, 2010

    @jp225 I think what you saw yesterday was a trick of light and steam, I watched it for a long time.

  238. #238 Mattias Larsson
    May 3, 2010

    I found a collection of 160 beautiful volcano photos at mbl.is. Some of them have already been seen before but it is great to have them at the same place. http://www.mbl.is/myndasafn/safn/1660/

  239. #239 birdseyeUSA
    May 3, 2010

    am i right in seeing steam to the right of the main outlet, or is it a trick of light following the top curve of the ‘big rock?’

  240. #240 Zander
    May 3, 2010

    @237, definitely. There is a lot of water running off the mountain to the right of the main outlet and further up is a lot of steamage.Maybe the lava is finding another way down the far right of the glacier.

  241. #241 Reynir Heiðberg Stefánsson, .is
    May 3, 2010

    The lava has to be taking the easiest route, the one that the meltwater carved.

  242. #242 Daniel
    May 3, 2010

    I would agree with post #210. It would be nice to have a proffessional point of view as to what these EQ´s could mean.

    It has been upgraded to 8 events whereof 7 of them was at a depth of 14km or more. Seems something is stirring down there and if the depth is accurate wouldnt that mean that even a “small” 1.6-1.9 magnitude EQ would be quite large if it would occur closer to the surface? Or is the magnitude calculated in such a way that it is already compensated for depth and so on?

  243. #243 birdseyeUSA
    May 3, 2010

    now those of you who still have voda (grrr) will have to give details, milu is very hard to see

  244. #244 Ruby
    May 3, 2010

    Vodafone cams showing a large white plume and also lots of meltwater coming out of split boulder into lake

  245. #245 Paolo
    May 3, 2010

    See now http://www.vodafone.is/eldgos/en and http://eldgos.mila.is/eyjafjallajokull-fra-fimmvorduhalsi/.

    The large black plume is the same as before, or is it a new vent? It seems further on the right.

  246. #246 Reynir Heiðberg Stefánsson, .is
    May 3, 2010

    A crosscheck with the apron cam in Múlakot makes it look like that most of the steam comes from one spot.

  247. #247 Anne in Scotland
    May 3, 2010

    Looking through the Þórólfsfelli cam – I think Paolo may be right. There does look like a very vigorous ash plume to the right which is not continuous – it has a huge spurt every know and then – the main vent keeps a fairly steady output. But in my opinion activity has definitely increased in the last hour or so.

  248. #248 Paolo
    May 3, 2010

    Uh-oh, it looks like more trouble for airline companies…

  249. #249 birdseyeUSA
    May 3, 2010

    ref. earthquakes. I can’t find the post but I think it was Jón F. who said that the raw data is manually corrected so what shows at first may be later removed…

  250. #250 Kyle
    May 3, 2010

    That is one mutha of an ash plume on the Vodafone cam at the moment.

  251. #251 birdseyeUSA
    May 3, 2010

    Icelandic Meteorological experts have recommended flow and take samples of Markarfljót of floods that regularly come before Gígjökli because melting water from the eruption in Eyjafjallajökull. Water Thermometer with Markarfljót old bridge and this morning the water temperature was measured to be about 17 ° C.
    from this morning’s news, poor translation from net…
    Much steam and ash Mocha is still evident in Eyjafjallajökull.

    Gosórói rose yesterday. The increase may be due to the interaction of ice and lava Gígjökli or change in gosrás. No earthquakes measured by Eyjafell yesterday. There is no evidence gosloka.

    Explosive eruption (ash production) but has increased in recent days and the flow of ash from the crater estimated at 10-20 tons / s. It is harder to assess changes in the lava flow and is therefore not known whether it has increased.

  252. #252 Jon
    May 3, 2010

    The black plume seems to have moved further to the right in the last hour or so.

  253. #253 Reynir Heiðberg Stefánsson, .is
    May 3, 2010

    #246: Not yet, but the airline execs are not gunna fly anytime soon, citing job pressure and whatnot. Hmm… I don’t recall Richard Branson announcing a new record attempt at late. How excellently suitably suspicious.

  254. #254 beedragon Canada
    May 3, 2010

    @birdseye A couple of days ago, if I remember correctly, the water temperature at the Markarfljot bridge (which is 18 km downstream from Gigjokull) was 11 deg. C. It looks like they’re saying it’s up to 17 C. now. Still not quite warm enough for my liking, but pretty toasty for Iceland, I’d imagine.

  255. #255 Paolo
    May 3, 2010

    Stay tuned for another highlight. Steam plume is reaching the upper margin of close-up of Vodafone cam.

  256. #256 Reynir Heiðberg Stefánsson, .is
    May 3, 2010

    Looks like Míla has replaced the cam on Valahnúkur, if the sudden appearance of the Mobotix logo is to go by.

  257. #257 beedragon Canada
    May 3, 2010

    A huge amount of slumping and cracking showing above the meltwater opening – guesstimating an area at least 100m x 100m. This currently looks like it’s wedged in like a centre brick in an archway, but if it lets go, it’s probably going to make a huge splash!

  258. #258 Anna, Reykjavík
    May 3, 2010

    @birdseyeUSA (#249)

    Google still has problems with eruption-related words. Here’s three that appear regularly in news reports:

    gosórói tremors
    gosrás eruption channel, volcanic conduit
    goslok the end of an eruption

    “Much steam and ash Mocha is still evident in Eyjafjallajökull”

    That’s supposed to be plume, not Mocha.

  259. #259 Ruby
    May 3, 2010

    @253 yes I have been watching that too definately alot of activity at the moment compared to this morning I am glued to the screen at the moment.

  260. #260 beedragon Canada
    May 3, 2010

    @Reynir #254

    The camera is probably the same, but maybe they just got a new sponsor. Too bad they couldn’t turn that camera a few degrees to the right for a view of the lava flow :)

  261. #261 Chris, Reykjavik
    May 3, 2010

    @birdseyeUSA, #247: That was me. Whats the question about it? Thats exactly what they now did with the earthquake series from this morning, manually curate the data.

  262. #262 Reynir Heiðberg Stefánsson, .is
    May 3, 2010

    Isn’t a well-brewed mocha supposed to put off a thick plume anyway?

  263. #263 eddie
    May 3, 2010

    If you look carefully at the rock showing in the thorolfsfelli cam just now, you can see the face of SANTA!

  264. #264 birdseyeUSA
    May 3, 2010

    @Chris259 thanks, I didn’t pick up on that part…

  265. #265 beedragon Canada
    May 3, 2010

    @eddie 261

    I don’t see Santa, but I think I’ve been looking at this too long … I see a pair of eyes looking towards the lava plume. These eyes are just below the cloud bank in the white snow near the right side of my screen!

  266. #266 Anne in Scotland
    May 3, 2010

    @eddie 261
    I did see Santa but he then lost his beard and changed into something more like Munch’s “Scream”

  267. #267 Paolo
    May 3, 2010

    @Anne 264.
    Which, of course, had a vivid red sky in the background allegedly due to Krakatoa eruption.

  268. #268 Anne in Scotland
    May 3, 2010

    Now, through the snow/sleet he’s just a spewing gargoyle!

  269. #269 birdseyeUSA
    May 3, 2010

    @MrMoho 206,AlisonUK198 were those corrected EQ’s? @Chris that’s what I was referring to.

  270. #270 Reynir Heiðberg Stefánsson, .is
    May 3, 2010

    The brook on our left-hand side of the glacier tongue has definitely grown since yesterday.

  271. #271 ruby
    May 3, 2010

    Is that a huge landslide to the right falling into the lake

  272. #272 Lurking
    May 3, 2010

    @Renato I Silveira [209]

    “My question is: How deep is the magma chamber that’s supposed to feed both Eyjaf and Katla, if that should be the case?”

    I’m not the expert you are seeking, however;

    “After relocating the earthquakes, many of them form separate clusters, but the overall pattern forms a pipe-like structure extending from the crust-mantle boundary towards the surface below the northern edge of the ice cap. The aseismic gap in the “channel” between approximately 5 and 8 km depth indicates different rheological conditions of the rock.

    Increased plasticity of the rock matrix could explain its less brittle behaviour and thus the seismic quiescence and hence we suggest that this is an indication of a magma storage and from there magma flowed southwards to form the intrusion in 1999 and that a similar process also occurred in 1994.”

    From: “Seismic Signs of Magma Pathways through the Crust in the Eyjafjallajökull volcano, South Iceland” – Sigurlaug Hjaltadóttir, Kristín S. Vogfjörð, Ragnar Slunga

    Of the last 8 seismic events, 7 of them were deep, averaging 15.9 km down. They are offset about 4km to the west and 7 km lower than the main clusters that led to the fissure eruption and the subsequent main caldera eruption we are peeking at on the cams. The “feed pipe” that led to the original main clusters started about 2 to 3 km above where these quakes occurred. “feed pipe” being my term and having no official standing, that’s just what it looks like on my 3D plot.

    Any thoughts as to what this means from people who actually study this stuff?

  273. #273 Kenneth
    May 3, 2010

    @snotra viking, #210: Eyjafjöll is yet not considered to be part of any of the riftzones in Iceland, but perhaps it will be in a “near” future as it seems to me that the eastern rift zone is propagating to the WSW. But on the other hand Eyjafjöll is one of the oldest active volcanoes in Iceland and as this eruption is not one of her(?) first ones it’s not very likely imho that this will be the one that split Eyjafjöll apart. Oh well in a couple of million years we’ll know for sure. I guess we all just have to stay tuned ;)

    /Just another spectator.

  274. #274 Anna, Reykjavík
    May 3, 2010

    “Milk from the dairy farms in the affected areas uncontaminated” (ruv.is today). Well, that’s good news for the farmers, they have enough to deal with as it is.

    But to think: If Vesuvius were to erupt now 600,000 people would be directly affected, or even as many as one million.

    And I’m not going into the horrible environmental disaster the people in the US are trying to deal with now.

    (ok, I’ve had my Pollyanna moment today. I’m going back to the exciting stuff: watching those tuff rocks crumble at glacial speed)

  275. #275 Jón Frímann
    May 3, 2010

    In my part of Iceland there is a lot of haze currently. It is quite unusual for this time of year. It might be from the volcano, or it might just be pollution. I am not sure yet.

  276. #276 Kyle
    May 3, 2010
  277. #277 Diane N CA
    May 3, 2010

    Well, the gargoyl is back and I don’t know how long it will stay there. LOL

    There have been a lot of change since I was on last night. I have not seen what the rest of you have, but that is ok. At least I can see something.

    I think I will be off for a while. I have laundry to do and other things I don’t even want to think about.

    Catch you all later.

    Rats! It is hard to get away from the computer!

  278. #278 Anne in Scotland
    May 3, 2010

    On the right side of the gargoyle’s “mouth” there is a huge stream of water on the Þórólfsfelli cam. Vodafone camera down – dammit, Janet!

  279. #279 renee
    May 3, 2010

    It feels like she is holding her breath….

  280. #280 Diane N CA
    May 3, 2010

    I was watching when that flow on the right opened up. It just gushed down and it has been hard, as I said above, to get away from the computer. I did get the socks in the washer. ^_^

  281. #281 Zander
    May 3, 2010

    @276 vodafone is fine, fellow scot.

  282. #282 Kultsi, Askola, FI
    May 3, 2010

    #277 Nah, she taking a tinkle break…

  283. #283 Reynir Heiðberg Stefánsson, .is
    May 3, 2010

    Probably intends to use the rain veils to pull off some naughtiness on unsuspecting webcam watchers.

  284. #284 Mr. Moho
    May 3, 2010

    My speculation about this drop in tremor activity (which is rising again as I’m writing, though) is that if it’s caused by its underlying magma chamber(s) being been almost fully filled, then tomorrow we should start seeing a marked inflation in GPS time series data, unless the volcano starts erupting explosively again.

  285. #285 beedragon Canada
    May 3, 2010

    Water level in the meltwater pond seems to be rising significantly.

  286. #286 Renato I Silveira
    May 3, 2010

    #222 #270 Thank you for the useful information. I’ll have to study them to have a “3d ” understanding of the processes involved. I’m worried from the fact that they keep connecting this eruption to Katla, when there’s no evidence that Katla will erupt in consequence of this one. Thought that these deep earthquakes could drop a light to it. Thank yo very much.

  287. #287 birdseyeUSA
    May 3, 2010

    maybe this is why we can’t see very clearly??
    http://www.metoffice.gov.uk/aviation/vaac/data/VAG_1272886826.png

  288. #288 birdseyeUSA
    May 3, 2010

    nah, wrong side of volcano…cameras are the other way..my goof

  289. #289 Ulrike
    May 3, 2010

    Hi all, greetings from Ireland. Was silently watching ever since. Now, a bit like Erik (but on the receiving end… studying to be a fully qualified behavior analyst, I have little time to go through all comments. Still amazed by this wonderful blog. As a frequent Iceland goer (of German and Irish decent :o)I am most interested in old Eya. Of course I am far far far from beng an expert, but it is nice to get good scientific info.
    As for tonight here in Eire (20 miles from Knock Airport, Ireland West) our Lady of Iceland seems to put a halt on air travel again. Never mind guys. Nobody believed, me when I said, that things are not over… but they only read the “Behavior Analyst” I suppose :o)Very good journal on the science of behavior. Might soon feature a few articles on air passenger behavior, when faced with a vulcanic crisis. Would love to carry out a few studies about that myself. Thanks a mill Erik for this site and blog and good luck for you and your students with the exams.

  290. #290 Jón Frímann
    May 3, 2010

    New wave of flight bans due to a ash cloud coming.

    http://news.bbc.co.uk/2/hi/uk_news/scotland/highlands_and_islands/8658523.stm

  291. #291 Lurking
    May 3, 2010

    @Renato I Silveira [270]

    “…study them to have a “3d ” understanding of…”

    I got severely frustrated at Excel as I was dropping the quake info spreadsheets. No 3D scatter chart of any usefulness. I remembered that Dplot had been used by Anthony Watts (WUWT) in some of his environment stuff so I picked up a version (very well priced). The cool part about it is that it integrates with Excel, and allows you to generate a 3D scatter plot with the click of a mouse (after you highlight the data). Once you have the plot, you can easily slew around to different viewing angles. I don’t recommend it unless you really like to get a spatial grasp on where stuff is located at. On top of the quake plots, I have an added (Lat Lon Height) plot of the volcanoes.

    “…I’m worried from the fact that they keep connecting this eruption to Katla, when there’s no evidence that Katla will erupt in consequence of this one. Thought that these deep earthquakes could drop a light to it…”

    From what I’ve seen most of the quakes are focused near the currently erupting caldera. Not much going on over at Katla. It’s almost boring other than the Helicorder data. In my opinion, that’s the best measure of what this eruption is up to.

  292. #292 Renato I Silveira
    May 3, 2010

    #Lurking
    I hope it is quite so. We don’t want to bring Katla much into this. Better leave her in the realms of her own independence and pray God it will remain so. Thank you very much. I’m learning a lot from this blog and my expertise on volcanism will surely be enriched after all the enlightement acquired here. And if the clouds allow we will be able to enjoy the beautiful pirotchny Eyjaf has provided us eversince.

  293. #293 Gina Ct
    May 3, 2010

    I think given a glimpse or two that there has been a large burst of water the river appeared to be full no mud flats visable

  294. #294 Reynir Heiðberg Stefánsson, .is
    May 3, 2010

    Wonder who’ll be the first to shout bingo when the lava stream appears at the tip of the glacier tongue. Probably won’t be me, though.

  295. #295 Jen
    May 3, 2010

    @292: will we actually see it though? Or it will it just result in so much steam the camera looks… like it does right now.

  296. #296 Anna, Reykjavík
    May 3, 2010

    I would love to go and see the huge ice-cave where the water is pouring out. All this will be gone in a day or two (or four). Big clouds of sulphur dioxide are hanging about though (emitted by the meltwater).

  297. #297 leo
    May 3, 2010

    “The volcano that stopped Britain” is now on Youtube in 5 parts.
    http://www.youtube.com/watch?v=4nF5MfVkG68

  298. #298 Reynir Heiðberg Stefánsson, .is
    May 3, 2010

    That remains to be seen. (Any pun in here is very definitely intended.)

  299. #299 Kultsi, Askola, FI
    May 3, 2010

    The Markarfljót level is stable at about 660, the salinity is going down and the water temperature is close to freezing point. Clearly, the meltwater now travels most of the way down in contact with the glacier, melting what it can until there is no heat left to exchange, and emerges at about freezing temperature. The conductivity going down shows that the ash-contaminated water is diluted quite a bit.

  300. #300 Reynir Heiðberg Stefánsson, .is
    May 3, 2010

    Some interesting footage on TV tonight. Didn’t realise until then (I’ve never been to there) exactly how great bloody big the tip of Gígjökull is now.

  301. #301 Jon
    May 3, 2010

    Looks to me like there has been a huge increase in meltwater based on the Vodafone cam.

  302. #302 snotra viking, sweden
    May 3, 2010

    I just watched the show “The volcano that stopped Britain”. See comment 214. Great for perspective views of the Eyjafjallajökull and the water flows. A really interesting documentary.

    Thanks for the link to downloading sites! If anybody know of more documentary shows, please post a comment here to tell us all.

  303. #303 snotra viking, sweden
    May 3, 2010

    Let´s all blow on our screens to make the fog go away.

    One, two, threeeee….

  304. #304 birdseyeUSA
    May 3, 2010

    @snotra viking – just got back to computer, you weren’t kidding about the fog, were you!!

  305. #305 birdseyeUSA
    May 3, 2010

    I just looked and for the moment, the valacam is disconnected

  306. #306 beedragon Canada
    May 3, 2010

    Who wants to write the first Haiku?

    I can’t think of anything to write that doesn’t have fog, rain, or clouds in it!

  307. #307 snotra viking, sweden
    May 3, 2010

    Birdseye, not kidding, just annoyed becuse i´m blind. I can recommend the british documentary, se above, if you want to see something with more action. There is also a pisaca album from vodafone today.

  308. #308 snotra viking, sweden
    May 3, 2010

    Eye-resting soft grey
    behind waits black,white and red
    wait for a moment

  309. #309 birdseyeUSA
    May 3, 2010

    @snotra, that was said with !! ,meaning ‘ good heavens,I see what you mean!!’ a sort of use-the-negative for emphasis…ah, english …
    todays’s report : http://www.earthice.hi.is/page/ies_Eyjafjallajokull_eruption?139,32

  310. #310 birdseye
    May 3, 2010

    @beedragon..
    faced with foggy screen,
    reach out for ice,rock,steam.
    eyes blind,senses too.

  311. #311 snotra viking, sweden
    May 3, 2010

    Birdseye, you blow on your screen yet? LOL. I did understand that, but I also wanted to give you some tip of what to do instead… :-)

    Write a haiku for me?

  312. #312 Dan, Florida
    May 3, 2010

    Blew on my screen. Should have finished eating the crackers though. DOH!

  313. #313 Shelly
    May 3, 2010

    My very first attempt at Haiku! lol

    I wonder whats up
    EJ’s hiding in the clouds
    I wish I could see!

  314. #314 ulrike
    May 3, 2010

    Eyafjellsjokul was roarin’
    and from it lava was pourin’
    it left Europe in chains
    ‘coz people had pains
    on account of no planes a soarin’

    Guys please don’t take this too serious… I can’t come up with Haikus. But being from ~ireland ~I thought Limericks might do :o)))))) please no offence to anybody.

  315. #315 birdseyeUSA
    May 3, 2010

    @snotra Just answering the call to action by @beedragon – but left out a syllable, drat! Should be ‘reaching’… now I need to be quiet and do some work!

  316. #316 Raging Bee
    May 3, 2010

    I see Ireland has re-imposed flight restrictions, at least from 0600 to 1200 Tuesday:

    http://news.bbc.co.uk/2/hi/europe/8658738.stm

    Apparently overflights aren’t affected, only flights to/from Ireland. Not sure about the reasoning behind that — maybe a safewty decision compromised by politics? Or do they only expect (or pretend to expect) ash at lower altitudes?

  317. #317 beedragon Canada
    May 3, 2010

    softly tinted lens
    true reality obscured
    what are we missing?

  318. #318 Bjarni, Hafnarfjordur, Iceland
    May 3, 2010

    this is a haiku
    less dull than the eruption
    end of the haiku

  319. #319 renee
    May 3, 2010

    New Link posted

  320. #320 beedragon Canada
    May 3, 2010

    @bjarni

    That made me laugh out loud!

  321. #321 Gordon
    May 3, 2010

    Sky News now reports that Scotland is included in the flight restrictions.

    Aberdeen is still.
    I will hear birdsong again
    tomorrow morning.

  322. #322 Anna, Reykjavík
    May 3, 2010

    Raging Bee (#314). Here’s the ash forecast:

    http://metoffice.com/aviation/vaac/data/VAG_1272886826.png

    The ash plume from Eyjafjallajökull is nothing like it was in the beginning, in fact I think the ash emission is only about 1/10 or 1/20 of what it was when they basically shut down the European airspace. And the ash doesn’t shoot up to these jet stream altitudes either.

    But the ash plume has been more concentrated in the past 1 or 2 days or so and the wind has been consistently blowing in a south-east direction. Scotland and Ireland aren’t that far away from Iceland (as you can see on the map) and it’s been clear for a couple of days now that they might get affected.

  323. #323 Jón Frímann
    May 3, 2010

    Here is a written description of the eruption in the year 1612 or 1613. This is in Icelandic, but google translate might help somewhat on the translation on this text.

    http://www.vedur.is/vedur/frodleikur/greinar/nr/1896

  324. #324 Renato I Silveira
    May 3, 2010

    Fog and clouds
    All cams our down…
    S**t!

  325. #325 Alyson
    May 3, 2010

    Thanks for the amazing photos on this thread. I am sorry I can’t upload any of the graphs I saved from the early stages of the eruption.
    I have just seen the latest news re an ash cloud meaning that flights are being cancelled over Ireland tomorrow.
    telegraph.co.uk/travel/travelnews/7674704/Volcanic-ash-cloud-shuts-down-Irish-airspace.html
    New ash cloud threatens flights
    Flights in Ireland may have to be cancelled on Tuesday as a result of a thick cloud of volcanic ash drifting from Iceland.
    Irish air traffic controllers warned that they may have to declare a no-fly zone, posing a threat to services from Dublin and Shannon as the plume drifts across the Atlantic from Iceland
    “We think there may be disruption above Scottish air space, we are waiting to hear what the Met Office tells us,” a NATS spokesman said.

  326. #326 beedragon Canada
    May 3, 2010
  327. #327 Reynir Heiðberg Stefánsson, .is
    May 3, 2010

    My cuppa’s empty.
    Fog and rain hide scenery.
    Time enough for tea.

  328. #328 Reynir Heiðberg Stefánsson, .is
    May 3, 2010

    #312: Nice one. Gotta see if I have enough brain cells working to throw up a limmie.

  329. #329 Reynir Heiðberg Stefánsson, .is
    May 3, 2010

    View’s murky all over the place,
    You see sod all, even from space.
    The rain and the fog
    –may as well be vog–
    blind the webcams’ inquisitive gaze.

  330. #330 Kyle
    May 3, 2010
  331. #331 Mattias Larsson
    May 3, 2010

    There has been 3 more of those deep earthquakes under Eyjafjallajökull.

    20:37:57, 1.9 magnitude, 17.4km depth, 99% accuracy
    21:06:39, 1.8 magnitude, 16.7km depth, 99% accuracy
    21:17:22, 1.5 magnitude, 18.0km depth, 99% accuracy

  332. #332 beedragon Canada
    May 3, 2010

    When she started we couldn’t pronounce her name
    but we watched in wonder just the same
    she huffed and she puffed
    she roared and she bluffed
    Eyjafjallajokull holds all the cards in this poker game

  333. #333 Shelly
    May 3, 2010

    #312 I like limericks Ulrike.. :) know quite a few, too rude to be repeated here. lol

    There is an Icelandic Volcano
    whose name I just cannot pronounce Oh!
    Though I gave it a try
    Couldn’t get past the Ey
    So gave up, so pathetic I know

  334. #334 Daniel
    May 3, 2010

    All EQ´s are at 15-18km depth. Most are 99% verified.

    Something is happening and I think we will see a very dramatic development within short.

    Any vulcanologist or geologist here who has a theory of what might be going on down there?

    As a layman it seems that the main feeding magma chamber is acting up. Question is..Is this magma chamber connected with the same feed Katla has? Would be interesting to see someone who actually has the knowledge commenting on this.

    Looking at the coordinates of the EQ´s it seems to go on a north south line. Would this indicate a large magma chamber or just a north south intrusion?

    11 EQ´s today. All at 15-18km depth. All at (roughly) the same coordinates. All has similar magnitude.

    My guess is that the geologists on Iceland wont get much sleep in the next few days.

    Alot of questions i know. Sorry but i am fascianted and curious as to what this would mean. :-)

  335. #335 Mattias Larsson
    May 3, 2010

    You sure have some talent. I enjoy reading all poems! :)

  336. #336 Jón Frímann
    May 3, 2010

    There is a new thread on Eyjafjallajökull. I have moved the talk over there.

  337. #337 bruce stout
    May 3, 2010

    @Daniel #332

    fire away, it’s how most of us here learn! If you are lucky one of the pro’s will respond.

    re something dramatic happening, I don’t think so. At least not more dramatic than has already happened.

    Remember, the crust here is not all that thick. It is much thicker under Vatnajökull (40 km from memory) and thinning out to about 30 under Katla and 20 to 25 under Eyjafjallajökull, so these quakes are pretty close to the mantle/crust boundary. Secondly, there is a region of transition at about 12 to 14 km where the crust becomes progressively more ductile due to pressure and heat and not as brittle (a geologist once described it to me as silly putty, you know that stuff kids play with – it will stretch to a certain extent but beyond a certain point it will snap). To make it snap you need tension, either shifting faults or, as in this case, the intrusion of magma.

    Thirdly, this activity is massively below the level of activity that was going on prior to the eruption, mostly due to the fact that the conduit is now open to the surface, so rising magma no longer has to break its way to the surface. That said, I don’t think these few quakes indicate a significant change in the nature of the eruption. I would guess an elevated level of activity in the coming hours.

    Fourthly, if the magma is indeed coming from a deep source, it is most likely of a similar basaltic non-explosive composition to that we saw at Fimmvordulhalsi and not the explosive andesite we saw in the first days from the crater, which was most likely residue from a shallow magma chamber, i.e. we are most likely to see more lava fountaining.

    Fifthly, is the disclaimer.. you never know with these things!!! There is an outside chance that evolved magma (i.e. more silicic (explosive) is rising from depth, though I must admit my ignorance on the feasibility of evolved magmas at this depth in Iceland.. I know they can arise in other settings, just not sure about here) or that a new conduit is opening that taps into a shallow more felsic magma chamber that has so far not been affected by the current eruption – this could then open a new vent and we would have a rerun of what we witnessed over the last couple of weeks.. but we are really in the land of conjecture here. My best guess is business as usual with perhaps elevated eruption volume in the next day or so.

  338. #338 Renato I Silveira
    May 3, 2010

    #335 Hope we get more fireworks to see and no imminent threat to icelanders.

  339. #339 Grothar, Florida
    May 3, 2010

    Where is everyone? Anything new on any of the volcanos.

  340. #340 Raging Bee
    May 4, 2010

    It comes when called
    The more you say its name
    Stop trying to pronounce it!

    PS: Thanks, Anna, for the explanation of Ireland’s decision.

  341. #341 Evelyn, Sweden
    May 4, 2010

    Night/early morning brought a whole lot more EQ.

    Can’t see anything due to the weather.

    http://en.vedur.is/earthquakes-and-volcanism/earthquakes/#view=table

  342. #342 birdseyeUSA
    May 4, 2010

    @Evelyn 339 and338,337 there’s a new thread started, everyone is over there.

  343. #343 Grothar, Florida
    May 4, 2010

    How do you get to the new thread. I cannot seem to find the chat? Kan man hjelpe meg.

  344. #344 birdseyeUSA
    May 4, 2010

    Ja Grothar, set Dem her ned…eller Google Eruptions blog of saa finder Dede nye ‘threads/updates
    scienceblogs.com/eruptions/?utm_source=bloglist&utm_medium=dropdown

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