ALASKA VOLCANO OBSERVATORY STATUS REPORT
U.S. Geological Survey
Monday, August 11, 2008, 3:17 PM AKDT (Monday, August 11, 2008, 23:17 UTC)

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 can be detected by the AVO seismic network on nearby Great Sitkin Island but is at a low level. No ash emissions have been observed in satellite data for over two days and AVO has received no pilot reports of ash clouds.





Because Kasatochi lacks a seismic network, it may be difficult to determine if or when ash emissions may resume and the volcano remains in a hazardous state. It is possible for explosive activity to resume with little or no warning.


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

Satellite data from the past several days indicate that Cleveland is still actively erupting lava at the summit. No ash plumes have been observed in satellite images since July 29 and AVO has received no new information about Cleveland today.


Please see http://www.avo.alaska.edu/activity/Cleveland.php for more information.


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

Eruptive activity continues at Okmok Volcano on Umnak Island in the eastern Aleutian Islands. The intensity of activity has been variable over the past day, showing both steady and at times elevated seismicity. No ash clouds have been observed in satellite data over the past 24 hours.



Minor ash fall may occur over parts of Umnak Island.

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

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

CONTACT INFORMATION:

Chris Waythomas, Acting Scientist-in-Charge, USGS
chris@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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