12 Sep '11, 10pm

Lava Flow on Kizimen Volcano [image] #NASA

Lava Flow on Kizimen Volcano [image] #NASA

A prominent lava flow descends the eastern flank of Kamchatka’s Kizimen Volcano in this false-color satellite image acquired on September 4, 2011 (top). An image of the peak from September 6, 2009 (lower), shows the extent of the changes that have occurred since Kizimen began erupting in late 2010. Volcanic deposits (colored brown) have covered much of the vegetation (red) on the slopes of the volcano, especially to the east. Likewise, material has filled rivers and streams around the volcano. A modest volcanic plume rises from Kizimen’s summit, accompanied by a smaller plume from a fumarole to the northwest. These images illustrate the growth of a stratovolcano: layers of lava flows alternate with layers of “volcanic ash, cinders, blocks, and bombs.” Unlike fluid hawaiian-style lava, the flow on Kizimen is a block-lava flow, so viscous it’s almost solid. As the flow slowl...

Full article: http://earthobservatory.nasa.gov/NaturalHazards/view.php?...

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earthobservatory.nasa.gov 13 Sep '11, 5pm

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earthobservatory.nasa.gov 09 Sep '11, 8pm

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earthobservatory.nasa.gov 09 Sep '11, 10pm

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earthobservatory.nasa.gov 04 Sep '11, 4pm

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