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The Alaska Volcano Observatory (AVO) is a joint program of the United States Geological Survey (USGS), the Geophysical Institute of the University of Alaska Fairbanks (UAFGI), and the State of Alaska Division of Geological and Geophysical Surveys (ADGGS).
Sheveluch Eruption - March 29, 2007
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250 meter true color composite image from Aqua MODIS showing the top of the a dark, ash-rich eruption cloud from Sheveluch Volcano at about 0200 UTC, March 29, 2007. Strong seismicity related to this explosive dome collapse lasted from about 0150 to 0215 UTC, according to scientists at the Research Laboratory of Seismic and Volcanic Activity, Kamchatkan Branch of Geophysical Surveys. Based on information from several sources, the cloud eventually reached an altitude well in excess of 10 km (33,000 ft) and traveled at least 400 km (250 mi) northeast of the volcano. This MODIS image is courtesy of MODIS Rapid Response Project at NASA/GSFC.
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Dramatic umbrella cloud rising to an estimated 10,000 m (33,000 ft) above sea level over Sheveluch Volcano on the Kamchatka Peninsula during the explosive dome collapse event of March 29, 2007. According to observers, a pyroclastic flow accompanied the formation of this eruption column and cloud. Photograph taken in the nearby community of Klyuchi by Yuri Demyanchuk, Director of the Levinson-Lessing Kamchatkan Volcanological Station at Klyuchi (Institute of Volcanology and Seismology) and Engineer for the Kamchatkan Branch of Geophysical Surveys. Used with permission.
Restless Volcanoes
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Cleveland volcano:
Aviation Color Code - YELLOW
Volcanic Activity Alert Level - Advisory
Full details on this episode of unrest

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Fourpeaked volcano:
Aviation Color Code - YELLOW
Volcanic Activity Alert Level - Advisory
Full details on this episode of unrest

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Korovin volcano:
Aviation Color Code - YELLOW
Volcanic Activity Alert Level - Advisory
Full details on this episode of unrest

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Veniaminof volcano:
Aviation Color Code - YELLOW
Volcanic Activity Alert Level - Advisory
Full details on this episode of unrest

Last Activity Report View
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ALASKA VOLCANO OBSERVATORY
Current Status Report
Thursday, April 5, 2007 12:00 PM AKDT (2000 UTC)


KOROVIN VOLCANO (ATKA ISLAND) (CAVW#1101-16)
52°22'48" N174°9'22" W, Summit Elevation 5030 ft (1533 m)
Current Aviation Color Code: YELLOW
Current Volcanic Activity Alert Level: Advisory

Intermittent, low-level seismic activity continues at Korovin. Clouds obscure views of the volcano by satellite today. AVO has received no new information about activity at Korovin today.

Korovin has erupted several times in the past 200 years, most recently in 1998. Eruptions typically produce minor amounts of ash and occasional, small lava flows. Ash plume heights could exceed 20,000 ft above sea level. Korovin occasionally produces large steam plumes from its summit.


VENIAMINOF VOLCANO (CAVW#1102-07-)
56°11'41" N159°23'24" W, Summit Elevation 8225 ft (2507 m)
Current Aviation Color Code: YELLOW
Current Volcanic Activity Alert Level: Advisory

Intermittent, low-level seismic activity continues at Veniaminof. Clouds obscure web camera views of the intracaldera cone today.

Short-lived, very small-volume steam and ash bursts from the intracaldera cone have been common over the past few years. Ash from these events is not likely to extend beyond the caldera rim. There are no indications that a larger eruption is imminent.


CLEVELAND VOLCANO (CAVW#1101-24-)
52°49'20" N169°56'42" W, Summit Elevation 5676 ft (1730 m)
Current Aviation Color Code: YELLOW
Current Volcanic Activity Alert Level: Advisory

Clouds obscure the volcano from satellite today. AVO has received no new information about activity at Cleveland.

The lack of a real-time seismic network at Cleveland means that AVO is unable to track local earthquake activity related to volcanic unrest. Short-lived explosions with ash plumes that could exceed 20,000 ft above sea level can occur without warning and may go undetected on satellite imagery.

FOURPEAKED VOLCANO (CAVW#1102-26-)
58°46'9" N153°40'26" W, Summit Elevation 6903 ft (2104 m)
Current Aviation Color Code: YELLOW
Current Volcanic Activity Alert Level: Advisory

Intermittent, low-level seismic activity continues at Fourpeaked. Clouds obscure the web camera view today.

The age of the last significant eruption at Fourpeaked is not known. Because geological investigations have been limited and ice covers much of the area, the sizes and styles of past eruptions are not well-constrained. However, the composition of the volcano indicates that eruptions can be explosive, possibly producing plumes that reach in excess of 33,000 ft above sea level and local ash fall.


VOLCANO INFORMATION ON THE INTERNET: www.avo.alaska.edu

RECORDING ON THE STATUS OF ALASKA'S VOLCANOES (907) 786-7478

CONTACT INFORMATION:
Tom Murray, Scientist-in-Charge, USGS
tlmurray@usgs.gov (907) 786-7497

Steve McNutt, Coordinating Scientist, UAF/GI
steve@giseis.alaska.edu (907) 474-7131

The Alaska Volcano Observatory is a cooperative program of the U.S. Geological Survey, the University of Alaska Fairbanks Geophysical Institute, and the Alaska Division of Geological and Geophysical Surveys.
News
U.S. Geological Survey's alert notification system for volcanic activity - (Mar 27, 07)

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URL: www.avo.alaska.edu/index.php
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