Eruptions

SI/USGS Weekly Volcano Activity Report for 7/8-14/2009

Posted by Erik Klemetti on July 15, 2009
(12)
More »

Your weekly dose of volcanism from the USGS/Smithsonian Global Volcanism Program.

Highlights (not counting Mayon), include:

  • The activity at Mando Hararo in Ethiopia appears to be a fissure eruption. Ground observations saw a 4-5 kilometers / ~2.5-3 mile fissure with new predominantly ‘a’a lava flows that were 2-3 m thick … the fissure was lined with scoria ramparts 30-50 m high. They did not see any active lava, though.
  • As some Eruptions readers have pointed out from the OMI SO2 maps, Sarychev Peak (Russia) is still producing gas-and-steam (with some ash) plumes, mostly drifting off to the east of the volcano.
  • Shishaldin in the Aleutians saw its Alert status changed to Yellow/Advisory by AVO. A thermal anomaly seen via satellite in the crater has been growing more intense recently. The anomaly was first noticed in January of 2009. The volcano last erupted in 2004.
  • Explosions and 4-4.5 km / 13,500-15,000 foot ash columns were produced at Fuego in Guatemala. There was also some incandescent ejecta spotted being thrown 75 m / ~250 feet from the crater.
  • Shiveluch in Kamchatka (Russia) continues to rumble, with gas-and-steam plumes with ash produced by explosions reaching as high ~5.3 km / 13,400 feet.
Keywords: , , , ,
(12)
More »

Comments

  1. #1 mike don
    July 16, 2009

    Interesting that Shishaldin is brewing up again; I’ve always been fascinated by this volcano, one of those frequently-active but generally well-behaved ones that rarely make the news. Couple of odd facts: first known ascent in May 1932 by a team led by Jesuit priest/geologist Bernard Hubbard..who found that at that time it had no defined crater. It’s also acquired a plethora of different names…Sisquk, Shishaldin, Caroli and the colloquial ‘Smokin’ Moses’

  2. #2 Erik Klemetti
    July 16, 2009

    Well, then you should check out today’s post : http://scienceblogs.com/eruptions/2009/07/is_something_up_at_shishaldin.php.

  3. #3 Anthony Maiello
    November 8, 2010

    Could not have arrived at a much better time. Superb write-up.

  4. #4 http://koolontheweb.com/herminghaux9
    December 31, 2010

    I consider this to be an amazing post! I only have one question. How do you do it? Every thing on this site is really good.

    Keep up the good work!

  5. #5 Sue Sankey
    January 12, 2011

    You actually make it appear so quick with your presentation but I discover that topic being really something which I do think I might in no way understand. It seems too complicated and extremely broad for me. I will be looking forward for your next post, I can try to get the hang of it!

  6. #6 R.lyberge@hotmail.com
    February 18, 2011

    Ok this is a little off course…But it’s about volcanic eruptions! I was watching a Nova program about Air France 447, it provided some really good conclusions. I understand two storms existed: one lower, smaller storm and a high, larger storm. The plane is said to have disappeared off radar. My thought is that the plane could’ve crashed because of volcanic eruptions. In the higher and stronger storm, ash “particles” could’ve accumulated, and easily plugged the planes speed monitoring tubes. This also could affect the planes ability to gain speed, thrust, and altitude; it could impact the computers’ ability to gauge accurately. It could even affect how well the plane handles a lightning strike. I imagine its kinda like, flying in a muddy rainstorm… Ash particles combine with weather over the atlantic and increase the density and severity of storms. I think this is a cool theory and I like it, I wanted to tell someone. It was a good program, and this is a awesome site Thanks a Bunch!

  7. #7 Bill
    May 23, 2011

    You’ve got a good blog there keep it up. I’ll be watching out for most posts.

  8. #8 Garth
    September 23, 2011

    have been trying to find experiences of people who have tried this out first hand.

  9. #9 electric fences for dogs
    September 24, 2011

    Sehr geile Geschichte…bin mal gespannt ob das noch ein Nachspiel haben wird…

  10. #10 dmdrbsuf
    November 3, 2011

    [url="http://www.monclerjacketssaleonline.com/moncler-scarf-caps"] Monclr sale[/url]

  11. #11 tory burch handbags
    November 9, 2011

    thats shitty that the digital world is being forced upon the universe in a “cant do shit about it” fashion.

  12. #12 Android Apps
    November 18, 2011

    I like Your Article about SI/USGS Weekly Volcano Activity Report for 7/8-14/2009 : Eruptions Perfect just what I was searching for! .