Printer friendly versionALASKA VOLCANO OBSERVATORY CURRENT STATUS REPORTSunday, October 30, 2011 12:44 PM AKDT (Sunday, October 30, 2011 20:44 UTC)CLEVELAND VOLCANO
52°49'20" N 169°56'42" W, Summit Elevation 5676 ft (1730 m)
Current Volcano Alert Level: WATCH
Current Aviation Color Code: ORANGE
Clouds have obscured satellite views of Cleveland over the past 24 hours. AVO has received no reports of activity. On October 23, a TerraSAR-X satellite radar image showed deflation or collapse of the dome surface consistent with a pause in eruption of lava.
Effusion of lava may resume at any time. This could 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.
Additional information on Cleveland volcano and the current activity may be found at this link:http://www.avo.alaska.edu/activity/Cleveland.php
John Power, Scientist-in-Charge, USGS
email@example.com (907) 786-7497
Steve McNutt, Coordinating Scientist, UAF
firstname.lastname@example.org (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.