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ALASKA VOLCANO OBSERVATORY
CURRENT STATUS REPORT
Thursday, January 20, 2005 3:00 PM AST (January 21, 00:00 UTC)
ALASKA VOLCANOES WITH ELEVATED COLOR CODES:
MOUNT VENIAMINOF VOLCANO (CAVW #1102-07)
56°10'N 159°23'W, Summit Cone Elevation 7,073 ft (2,156 m)
Current Level of Concern Color Code: ORANGE
Seismicity remains at elevated levels, similar to what has been observed over the last several days. Clouds have obscured web camera views today. Satellite imagery from early this morning showed anomalous heat near the summit cone, but more recent images were obscured by clouds. Based on seismic signals, we infer that small ash emissions, reaching elevations less than 12,000 ft above sea level, have been occurring sporadically throughout the day. A particularly strong burst of seismic tremor at 22:21 UTC may have been associated with a slightly higher plume.
We expect that steam and ash emissions may continue and could pose a hazard to people and low flying aircraft in the vicinity of the active cone. Small ash falls outside of the summit caldera are possible.
MOUNT SPURR VOLCANO (CAVW#1103-04)
61°18' N 152°15' W, Summit Elevation 11,070 ft (3,374 m)
Current Level of Concern Color Code: YELLOW
Elevated levels of seismicity continue to be recorded beneath Mount Spurr. Clouds obscured web and satellite views today. There are no indications that an eruption is imminent.
VOLCANO INFORMATION ON THE INTERNET: http://www.avo.alaska.edu
RECORDING ON THE STATUS OF ALASKA'S VOLCANOES (907) 786-7478
Tom Murray, Scientist-in-Charge, USGS
firstname.lastname@example.org (907) 786-7497
Stee McNutt, Acting Coordinating Scientist, UAF-GI
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.