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AVO VOLCANO ACTIVITY NOTIFICATION

ALASKA VOLCANO OBSERVATORY DAILY UPDATE
U.S. Geological Survey
Tuesday, May 12, 2009, 2:24 PM AKDT (Tuesday, May 12, 2009, 22:24 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

The 2009 eruption of Redoubt continues. Recent seismicity has been at low levels compared to earlier phases of the eruption. The lava dome at the summit continues to grow and remains in an unstable condition. Collapse of the lava dome could occur with little or no warning, leading to significant ash emissions and possible lahars in the Drift River Valley.

Vigorous steam emissions continue to emanate from the margins of the lava dome, rising to elevations of up to 12,000 feet above sea level. Rock fall activity continues from the unstable slopes of the lava dome, producing minor ash clouds in the vicinity of the summit. No ash has been detected by satellite or radar data.

AVO is monitoring Redoubt volcano closely and the observatory is staffed 24/7. AVO will provide frequent updates of the volcano's status and the earliest possible warning of significant explosive activity and other hazardous phenomena.


VENIAMINOF VOLCANO (VNUM #312070)
56°11'52" N 159°23'35" W, Summit Elevation 8225 ft (2507 m)
Current Volcano Alert Level: ADVISORY
Current Aviation Color Code: YELLOW

Seismicity at Veniaminof remains elevated. AVO continues to observe small earthquakes and volcanic tremor located near the intra-caldera cone. No unusual activity has been observed on satellite data or by pilots flying in the area.





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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