Alaska Volcano Observatory
Current Status Report
Monday, August 11, 2008 2:18 PM AKDT (22:18 UTC)


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

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.
Rockfalls and avalanches of hot debris from the cooling lava flows on the flanks of Cleveland can occur with little or no warning. These events can produce small, localized ash plumes. Larger rockfalls can produce block and ash flows or avalanches that are hazardous to anything in their path.

Please see [link to www.avo.alaska.edu] for more information.

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

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.

A volcanic cloud from the August 7 eruption has drifted over the North Pacific and is currently nearing the Alaska panhandle.

:kasat3:
Picture Date: August 10, 2008 UTC
Image Creator: Schneider, Dave
Image courtesy of AVO/USGS

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.


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

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: [link to www.avo.alaska.edu]

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

CONTACT INFORMATION:
Chris Waythomas, Acting Scientist-in-Charge, USGS
[email protected], (907)786-7497

Jon Dehn, Acting Coordinating Scientist, UAFGI
[email protected] (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.