ALASKA VOLCANO OBSERVATORY DAILY UPDATE
U.S. Geological Survey
Wednesday, September 4, 2013, 11:19 AM AKDT (Wednesday, September 4, 2013, 19:19 UTC)

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

Ongoing eruptive activity at the intracaldera cone of Veniaminof Volcano is producing elevated levels of continuous seismic tremor. Elevated surface temperatures have been detected over the past 24 hours in satellite images, consistent with lava effusion and fountaining. A weak ash plume was visible this morning from the FAA webcam in Perryville. The plume was rising several hundred feet above the active cone and drifting east.

Ash fall from current activity is not expected to be significant and likely will be less than 1/16 inch, although areas within a few miles of the intracaldera cone could receive thicker amounts of ash fall. Information about volcanic ash and its potential effects can be found on the AVO web page (www.avo.alaska.edu).



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

No anomalous activity at Cleveland Volcano was observed in partly clear satellite imagery during the past 24 hours. AVO has received no other reports of activity at the volcano.

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, Scientist-in-Charge, USGS
jpower@usgs.gov (907) 786-7497

David Fee, Acting Coordinating Scientist, UAFGI
dfee@gi.alaska.edu (907) 474-7564

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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