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AVO VOLCANO ACTIVITY NOTIFICATION

ALASKA VOLCANO OBSERVATORY DAILY UPDATE
U.S. Geological Survey
Monday, May 18, 2009, 2:02 PM AKDT (Monday, May 18, 2009, 22:02 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. The lava dome at the summit continues to grow. Webcam views show that vigorous steaming continues at the summit. Seismicity remains relatively low, but above background levels.

Rockfalls of fresh, blocky lava continue to occur, often creating minor, diffuse ash clouds within the summit region. If a lava dome collapse occurs, or if the dome is removed by a sudden explosive event, there could be significant ash emissions to >30,000 feet above sea level. Pyroclastic flows associated with dome collapse could initiate lahars and floods in the Drift River valley.

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

During the past 24 hours, seismicity at Veniaminof has remained low, but above background levels. The seismicity has been comprised of primarily low amplitude volcanic tremor. Satellite data does not show any anomalous activity from Veniaminof. Nearby residents and pilots flying over the volcano have not reported any unusual activity.







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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