VOLCANO MADNESS: Re: [Geology2] Re: Explosive Eruption “Likely” At Russian Volcano

Saturday, June 18, 2011

Re: [Geology2] Re: Explosive Eruption “Likely” At Russian Volcano

Way cool, Doug. Thanks for posting it!!

Lin

On Sat, Jun 18, 2011 at 5:17 PM, vermontredfox <vermontredfox@yahoo.com> wrote:

Hi,

Here's a Russian news cast about the volcano that has some video of it.
http://earthquake-report.com/2011/06/17/kamchatka-volcano-erupts-in-russia/

-Doug

--- In geology2@yahoogroups.com, Lin Kerns <linkerns@...> wrote:
>
> Explosive Eruption "Likely" At Russian Volcano
>
> By Mark Dunphy - Fri Jun 17, 2011
> [image: An orbital view of a small eruption of Shiveluch volcano on the
> Kamchatka Peninsula in Russia. Gas and steam vent from the volcano. The peak
> of the mountain is brown as snow has melted away and replaced with ash. This
> orbital view was taken by a member of Expedition 14 aboard the International
> Space Station.]<http://www.irishweatheronline.com/wp-content/uploads/2011/06/42-22735012.jpg>
> An orbital view of a small eruption of Shiveluch volcano on the Kamchatka
> Peninsula in Russia. Gas and steam vent from the volcano. The peak of the
> mountain is brown as snow has melted away and replaced with ash. This
> orbital view was taken by a member of Expedition 14 aboard the International
> Space Station.
>
> *One of Russia's largest and most active volcanoes erupted Friday sending
> ash more than 10,000 feet into the air. Officials said a much larger
> eruption is "likely".*
>
> Shiveluch (also spelled Sheveluch) is one of the largest and most active
> volcanoes on Russia's Kamchatka Peninsula. It has been spewing ash and steam
> intermittently—with occasional dome collapses, pyroclastic flows, and lava
> flows, as well—for the past decade.
>
> Shiveluch has had over 60 large explosive eruptions during the past 10,000
> years. Catastrophic eruptions took place in 1854 and 1956, when a large part
> of the lava dome collapsed and created a devastating debris avalanche. The
> last significant eruption ocured in late May 2011 resulting in ash being
> sent to a height of 7.5 kilometres above sea level. The ejection was
> accompanied by an earthquake at the volcano that lasted more than 10
> minutes.
>
> According to *Kvert* <http://www.kscnet.ru/ivs/kvert/updates.php>, which
> monitors Kamchatkan and Northern Kuriles Volcanic Activity:
> "Explosive-extrusive eruption of the volcano continues. Ash explosions up to
> 32,800 ft (10 km) ASL could occur at any time. Ongoing activity could affect
> international and low-flying aircraft. Moderate seismic activity of the
> volcano continues. According to seismic data, ash plumes rose up to 32,800
> ft (10.0 km) ASL on June 15. According to visual data, moderate gas-steam
> activity of the volcano was observing on June 10 and 12; clouds obscured the
> volcano on the other days of week. According to satellite data, a gas-steam
> plume containing small amount of ash extended about 16 mi (26 km) to the
> north-west from the volcano on June 10. A thermal anomaly was registered
> over the lava dome on June 10 and 12-13; clouds obscured the volcano on the
> other days."
>
> The Kamchatka Peninsula, located along the Pacific "ring of fire," includes
> more than 100 volcanoes. While most of these volcanoes are not actively
> erupting, many are considered dangerous due to their eruptive history and
> their proximity to population centres and air travel corridors.
> [image: Shiveluch (Sheveluch) volcano location. Image Google
> Maps]<http://www.irishweatheronline.com/wp-content/uploads/2011/06/shiveluch_ali_2010250.jpg>
> Shiveluch (Sheveluch) volcano location. Image Google Maps
> [image: The Advanced Land Imager (ALI) on NASA's Earth Observing-1 (EO-1)
> satellite acquired this image on September 7, 2010. Brown and tan
> debris—perhaps ash falls, perhaps mud from lahars—covers the southern
> landscape of the volcano, while the hills on the northern side remain
> covered in snow and ice.]
> The Advanced Land Imager (ALI) on NASA's Earth Observing-1 (EO-1) satellite
> acquired this image on September 7, 2010. Brown and tan debris—perhaps ash
> falls, perhaps mud from lahars—covers the southern landscape of the volcano,
> while the hills on the northern side remain covered in snow and ice.
>
> *SHIVELUCH INFO FROM VOLCANODISCOVERY.COM <http://volcanodiscovery.com/>*
>
> Typical eruption style: Highly explosive. Construction of lava domes and
> large pyroclastic flows caused by dome collapse. One of Kamchatka's largest
> and most active volcanoes.
>
> Eruptions from Shiveluch (Sheveluch): 1739(?), 1800(?), 1854 (Plinian
> eruption), 1879-83, 1897-98, 1905, 1928-29, 1930, 1944-50, 1964
> (sub-Plinian, large dome collapse and debris flow), 1980-81, 1984, 1985,
> 1986-88, 1988, 1989 1990-94, 1997, 1998, 1999, 1999-ongoing in 2011
> Source<http://www.irishweatheronline.com/news/earthquakesvolcanos/explosive-eruption-likely-at-russian-volcano/20361.html>
>
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