Monday, January 3, 2011

[Geology2] Volcano News 01/03/11



Volcanic ash blankets Russia's Petropavlovsk-Kamchatsky

The Kizimen volcano. © RIA Novosti.M. Pevzner
The Kizimen volcano
16:32 02/01/2011
© RIA Novosti. M. Pevzner

Thin layer of ash from the active Kizimen volcano has on Sunday covered the city of Petropavlovsk-Kamchatsky where 60 percent of the Kamchatka Peninsula residents live, a representative for the Russian Academy of Sciences' Institute of Volcanology and Seismology said.

"A taint of grey ash typical of Kizimen can be seen on the snow, on the cars and on all of the surfaces in the city," the spokesman said.

He said the layer is tiny - about 0.5 millimeters and added that the current situation does not pose a threat to the health of the local residents.

However, the ash could affect the operations of aircraft.

The Kizimen volcano is located 265 kilometers away from Petropavlovsk Kamchatsky. Kizimen's last eruption occurred in the end of 1920-s, but it the volcano started to exhibit activity the last June and a new eruption began a month ago.

PETROPAVLOVSK-KAMCHATSKY, January 2 (RIA Novosti)

Source

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Activity at Kizimen Volcano

On December 31, 2010, Kizimen continued releasing plumes of ash and steam. The U.S. Air Force Weather Agency reported ongoing activity as the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA's Aqua satellite showed a plume from the volcano blowing southward over the Kamchatka Peninsula and the Bering Sea.

The red outline at the volcano's summit is a hotspot where MODIS has detected unusually high surface temperatures. Kizimen's plume blows toward the southwest and southeast. In the southeast, the plume appears as a faint gray-beige veil over the Bering Sea. An expanse of snow west of the volcano looks dingy gray, and this color could result from recent ashfall from Kizimen.

Rising to an altitude of 2,376 meters (7,795 feet), Kizimen Volcano is a stratovolcano composed of hardened lava, solifidied ash, and rocks ejected by earlier eruptions. The volcano has experienced multiple periods of long-term lava dome growth, and lava domes overlap at the summit.

Download images here at source

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A explosions heard from Eyjafjallajökull volcano

This time around, it appears my break is going to a shorter then I planned. According to the newspaper named DV (a short of tabloid in Iceland) there have been a lot of explosion heard from Eyjafjallajökull volcano. According to the news this started around 19:00 UTC, when exactly is unclear at present time.

This was reported by a local farmer in the area, how describe this as the same noise before it started to erupt there Eyjafjallajökull volcano started to erupt in April 2010. But according to Icelandic Met Office and the University of Iceland nothing special has appears on seismometers around Eyjafjallajökull volcano. But it is good to know that in the first eruption in Eyjafjallajökull volcano on Fimmvörðuháls it took few hours for the harmonic tremor to appear following that eruption. For now all that can be done is to wait and see what happens next. This might be a start of a new eruption, or this simply might be nothing for the moment.

Update 1: This has been confirmed by more news media in Iceland. This also appears to have been going on all day. But the explosions today might have been at lower noise level during the day then happened tonight (this is unclear at the moment however). But also according to the news this explosions have been heard to Hvolsvöllur in the right wind direction (or a good weather?). This explosive booms have also been heard by other people in the area around Eyjafjallajökull volcano.

The news on this activity. Use Google Translate at own risk.

Drunur í Eyjafjallajökli: „Eins drunur og þegar byrjaði að gjósa síðast" (DV.is)
Drynur enn í Eyjafjallajökli (mbl.is)

Source



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