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AVO VOLCANO ACTIVITY NOTIFICATION

ALASKA VOLCANO OBSERVATORY STATUS REPORT
U.S. Geological Survey
Tuesday, July 29, 2008, 1:34 PM AKDT (Tuesday, July 29, 2008, 21:34 UTC)


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

Satellite images show discrete plumes with weak ash signals that are reaching altitudes between 20,000 and 35,000 ft and moving E to SE from the volcano. Seismicity continues strongly in a pulsating nature. These pulses are strong enough to be easily identified on seismometers on Makushin Volcano on Unalaska Island. Based on these observations AVO increased the aviation color code at Okmok volcano to red at July 28, 4:51 pm AKDT (20080728/0051Z).

Stronger explosive activity could resume at any time with little or no warning.


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

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 images of the volcano are cloudy. When last observed, a plume at 10,000 feet with little or no strong ash signal was 100 mi distant from the volcano and moving NE.



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



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

Steve McNutt, Coordinating Scientist, UAFGI
steve@giseis.alaska.edu (907)978-5458

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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URL: avo.alaska.edu/activity/report.php
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