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Photos of the "melt hole" on the summit of Mt. Spurr.
Michelle Coombs, October 30, 2004.
Click on an image to view the full-size picture.
Volcanoes with elevated level-of-concern color codes:
Last updated: Friday, November 12, 2004
Mount Spurr, Cook Inlet, Alaska, Level YELLOW
Details of recent activity.
Bezymianny Volcano, Kamchatka Peninsula, Russia, Level YELLOW
Klyuchevskoy Volcano, Kamchatka Peninsula, Russia, Level YELLOW
Karymsky Volcano, Kamchatka Peninsula, Russia, Level YELLOW
Sheveluch Volcano, Kamchatka Peninsula, Russia, Level ORANGE
Details on KVERT updates page....
Map of Kamchatka Peninsula volcanoes
What's going on at Mt. Spurr?
Mount Spurr Volcano, about 80 miles west of Anchorage across the Cook Inlet, has grown restless in recent months. Scientists at the Alaska Volcano Observatory (AVO) first noticed the unrest in early July when hundreds of small earthquakes occurred 3 to 4 miles beneath Spurr's summit. Aerial reconnaissance in mid-July and early August documented recent small flows of mud and rock and a recently formed "ice cauldron" in the summit ice cap. The ice cauldron is a collapse feature possibly caused by an increase in heat coming from deep beneath the summit. Using sensitive instruments, scientists flying around the volcano on August 7 detected small amounts of the volcanic gases in a plume from the summit.
Continued
Preparing for an eruption
Volcanic Ash, what it can do, and how to minimize the damage.
Veniaminof Activity Page
Kamchatkan-Aleutian Subduction Processes
4th International Seismic-Volcanic Workshop
Second Circular (PDF)
CLEVELAND VOLCANO, Aleutian Islands
3 eruptions in February and March of 2001.
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