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AVO VOLCANO ACTIVITY NOTIFICATION

ALASKA VOLCANO OBSERVATORY STATUS REPORT
U.S. Geological Survey
Monday, August 25, 2008, 3:03 PM AKDT (Monday, August 25, 2008, 23:03 UTC)


OKMOK VOLCANO (VNUM #311290)
53°23'49" N 168°9'58" W, Summit Elevation 3520 ft (1073 m)
Current Volcano Alert Level: WATCH
Current Aviation Color Code: ORANGE

Volcanic unrest continues at Okmok Volcano. Earthquakes and occasional bursts of volcanic tremor have been observed in the past 24 hours. Despite cloudy conditions today, satellite observations show a thermal anomaly at the volcano.

Although the level of seismicity has declined and it appears that ash is no longer being erupted, it is possible for vigorous ash emissions to resume at any time.

KASATOCHI VOLCANO (VNUM #311130)
52°10'9" N 175°30'41" W, Summit Elevation 1030 ft (314 m)
Current Volcano Alert Level: WATCH
Current Aviation Color Code: ORANGE

Seismic activity at Kasatochi volcano continues. In the past 24 hours earthquakes and periods of volcanic tremor have been detected by the AVO seismic network on Great Sitkin Island 25 miles west of Kasatochi.

The volcano remains in a restless condition and is hazardous to approach. Further explosive activity remains possible.

CLEVELAND VOLCANO (VNUM #311240)
52°49'20" N 169°56'42" W, Summit Elevation 5676 ft (1730 m)
Current Volcano Alert Level: WATCH
Current Aviation Color Code: ORANGE

Cloudy satellite views over the past day show no definitive thermal anomaly at Cleveland volcano. AVO has received no additional information about activity at Cleveland.

Eruptive activity may resume at Cleveland volcano without warning.

OTHER ALASKA VOLCANOES

Please see http://www.avo.alaska.edu/color_codes.php for complete definitions of Aviation color codes and Volcano alert levels.

VOLCANO INFORMATION ON THE INTERNET: http://www.avo.alaska.edu
RECORDING ON THE STATUS OF ALASKA'S VOLCANOES (907) 786-7478

CONTACT INFORMATION:

John Power, Acting Scientist-in-Charge, USGS
jpower@usgs.gov (907) 786-7497

Jon Dehn, Acting Coordinating Scientist, UAFGI
dehn@gi.alaska.edu (907) 474-6499



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.
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