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AVO VOLCANO ACTIVITY NOTIFICATION

ALASKA VOLCANO OBSERVATORY STATUS REPORT
U.S. Geological Survey
Sunday, February 1, 2009, 12:45 PM AKST (Sunday, February 1, 2009, 21:45 UTC)


REDOUBT VOLCANO (VNUM #313030)
60°29'7" N 152°44'38" W, Summit Elevation 10197 ft (3108 m)
Current Volcano Alert Level: WATCH
Current Aviation Color Code: ORANGE

Unrest at Redoubt Volcano continues. Seismicity has remained relatively constant over the last 24 hours and is still well above background. A vapor plume is intermittently visible in the AVO web camera. It appears to rise no higher than the volcano's summit.

An observation and gas-measurement flight to the volcano yesterday noted continued vigorous fumarolic activity and runoff of muddy water down the north flank of the volcano. Volcanic gas was detected; data analysis is ongoing to compare these measurements with previously measured gas output.

Staff are currently monitoring the volcano 24 hours a day. We will issue further information as it becomes available.


SHISHALDIN VOLCANO (VNUM #311360)
54°45'19" N 163°58'16" W, Summit Elevation 9373 ft (2857 m)
Current Volcano Alert Level: ADVISORY
Current Aviation Color Code: YELLOW

Nothing unusual has been observed in cloudy satellite images over the last 24 hours. Yesterday, a pilot reported a plume trailing south from the volcano, however, seismicity remained unchanged. Snow and ice still obscure the volcano in web camera images.




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

Clouds have obscured the volcano in satellite view over the past day. AVO has received no other reports about Cleveland in the last 24 hours.

VOLCANO INFORMATION ON THE INTERNET: http://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
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.
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