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ALASKA VOLCANO OBSERVATORY STATUS REPORT
U.S. Geological Survey
Thursday, October 27, 2011, 11:50 AM AKDT (Thursday, October 27, 2011, 19:50 UTC)
52°49'20" N 169°56'42" W,
Summit Elevation 5676 ft (1730 m)
Current Volcano Alert Level: WATCH
Current Aviation Color Code: ORANGE
Cloudy conditions continue to obscure Cleveland. It is not clear if the current eruptive phase has paused or ended.
Renewed or accelerated activity is possible at any time and may result in lava overtopping the crater rim and flowing down the flank of the volcano. Portions of this lava flow could collapse and produce avalanches of hot debris that reach the sea accompanied by small ash clouds.
A sudden explosion and ash cloud exceeding 20,000 ft above sea level could also occur. Such explosions could go undetected in satellite imagery for hours. However, in cooperation with the University of Washington, AVO has implemented a lightning alarm system that may detect significant ash-producing events within minutes of onset. In the event of a large ash explosion, seismic signals may be recorded on AVO seismic networks at nearby volcanoes; there is no real-time seismic network on Cleveland.
AVO will continue to monitor the volcano using multiple sources of satellite, lightning detection, and distant seismic data.
For more information on the current activity at Cleveland, please see: http://www.avo.alaska.edu/activity/Cleveland.php
John Power, Scientist-in-Charge, USGS
firstname.lastname@example.org (907) 786-7497
Steve McNutt, Coordinating Scientist, UAF
email@example.com (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.