Eruptions

Finally, a chance to catch up a bit … !


Yasur erupting in May of 2010.

Some news from the world of volcanoes:

Comments

  1. #1 mike lyvers
    August 24, 2010

    The pic of Sakurajima may be mislabeled. The ash plume looks like it is emerging from the main crater while the so-called “pyroclastic flow” looks to me like steam emerging from the smaller Showa crater. That is my impression anyway.

  2. #2 Guillermo
    August 24, 2010

    It’s interesting the fact that Chaitén is covered by snow, indicating a cooling of the dome. In the OVDAS site, Caldera camera (frozen for a long time), you can see the base of the dome with snow.

  3. #3 Renato Rio
    August 25, 2010

    @Guillermo
    Before the eruption, did Chaitén show a perennial icecap, or it just forms in winter (when not erupting)? Could melting mean an eruption at sight?

  4. #4 Renato Rio
    August 25, 2010

    Míla’s cams showing a significant steam plume for the first time in days. Could that be related to recent EQ activity?
    Wednesday
    25.08.2010 03:32:21 63.694 -19.558 1.1 km 2.1 90.01 4.2 km WNW of Básar
    Wednesday
    25.08.2010 03:32:20 63.639 -19.366 1.1 km 1.6 90.02 5.7 km W of Goðabunga

  5. #5 Alastair
    August 25, 2010

    just checked the Þórólfsfelli cams. FLIR is back in action, and yes there is a steam plume again.

  6. #6 Renato Rio
    August 25, 2010

    @Alastair:
    FLIR is back, I forgot to mention. Have you tried the cam from Þorvaldseyri? Contrast is now too sharp, but earlier you could neatly see the rising plume. Maybe the crater lake is boiling now.

  7. #7 Henrik, Swe
    August 25, 2010

    All this recurring steaming would suggest (to me anyway) that water is not just sitting in the crater bowl but penetrates deeper and deeper into the mountain. Her next eruption could prove to be, erm…, “interesting”.

  8. #8 Sherine, France
    August 25, 2010

    Hello

    After the strong earthquakes in recent days, the Galeras volcano erupted this morning in Columbia.

    http://intranet.ingeominas.gov.co/pasto/P%C3%A1gina_Principal

  9. #9 Renato Rio
    August 25, 2010

    Thanks, @Sherine:
    I got this from El tiempo, Colombia:
    “The eruptive event occurred in the early hours of Wednesday, after which the alert level was raised from orange to red indicating that another eruption could be recorded in minutes, therefore she reiterated the call for residents to attend to shelters. According to Dr. Martha Calvache, deputy director of Ingeominas, the incident happened around 4:00 am and the organization and the state is monitoring the volcano.
    The signal of the Galeras has lasted for nearly an hour, one of the largest that have occurred in the area, as added Calvache.”
    http://www.eltiempo.com

  10. #10 Renato Rio
    August 25, 2010

    They say that although weather conditions at the site are good, yet they don’t know the kind of material extruded from the volcano.
    http://www.elespectador.com

  11. #11 Renato Rio
    August 25, 2010
  12. #12 Sherine, France
    August 25, 2010

    Thanks, @Renato for the link

    I found another interesting link

    http://www.vulkaner.no/v/volcan/galeras-e.html

    http://www.vulkaner.no/v/volcan/galeras-e.html

  13. #13 Carl
    August 25, 2010

    I get the feeling that Galeras could turn nasty since the residents flat out refuse to go to shelters with the words “nothing will ever happen”…

  14. #14 Renato Rio
    August 25, 2010

    Erik just opened a thread for Galeras. I’ll paste your comments over there.

  15. #15 Jón Frímann
    August 25, 2010

    Light from the moon makes the steam plume visible during the night tonight.

  16. #16 Jane
    August 26, 2010

    April 18 photos of Eyja. I found while looking for photos of glacier Ok. The photographer just happened to be on the spot, shooting clothing company ads. Is the second photo (looking down into the snow-coated cone) a photo of Eyja.?
    http://www.partytow.com/e/?p=7922

  17. #17 Sherine, France
    August 26, 2010

    Hello
    Last news from Galeras, but I do not see this report on the site Ingeominas :
    August 26th, 2010
    This morning the alert-level was reduced to ORANGE.
    Seismic activity went on for about 12 hours after the eruptive at 4 AM local time, but intensity
    was redused during the day. However, another seismic event happended again late afternoon, similar
    to the one at 4 AM. Ashfall is reported within 30 km from the crater, and there are possiblilities
    that a new crater has opened up. Up to 3.000 tonns sulfur dioxide up to 400m above the top was partly
    visible duringthe day. Of the 8.000 inhabitants to be evacuated, most of them refuse to live their homes
    so far. Magma is still floating near the opening, and therefore reason to be prepared for new intensity.
    Source : http://www.vulkaner.no/v/volcan/galeras-e.html

  18. #18 Renato Rio
    August 27, 2010

    I read this at RÚV News, but not quite sure of what it means:
    “New cracks were found in some of Sprengisandur up, but they are believed to have formed in the spring. Páll Einarsson, mineral physicists believe cracked delayed by attacks by the eruption under Vatnajökull Gjálp in 1996. ” (Google translated)
    http://www.ruv.is/frettaskyringar/innlendar-frettir/nyjar-sprungur-a-sprengisandi

  19. #19 Jane
    August 27, 2010

    Two of the Mila cams are down now, so I went exploring and found that Weather Underground has a satellite view that might be useful, if Eyja. becomes active again. I had to zoom and drag the map to find the glacier with Eyja.
    http://www.wunderground.com/wundermap/?lat=64.12999725&lon=-21.89999962&zoom=10&pin=Reykjavik%2c%20Iceland

    Below the map is a slider that will give you animation if moved to the right, for more frames. Unfortunately, I didn’t think of using this site during the eruption, and I’m not sure how useful it would be. I do use the radar images when a storm is predicted for my location, to see how fast it’s approaching. The image refreshes perhaps twice an hour.

    Looking at Wunderground for Catania Italy, I can see many small craters after zooming and dragging to Mt. Etna. Some craters have black around them (ash?).
    http://www.wunderground.com/wundermap/?lat=37.47000122&lon=15.05000019&zoom=10&pin=Catania%2c%20Italy

  20. #20 Orlando
    August 27, 2010

    Erik: Just saw the Nasa image of Chaiten, too bad the Chilean webcam has been inoperative since 6/20. I started reading about volcanoes when your blog started (and Chaiten erupted). Congrats on the great work.

  21. #21 Lauren
    December 1, 2010

    I love your site lol

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