Printer friendly versionALASKA VOLCANO OBSERVATORY
Saturday, January 28, 2006 3:55 PM AKST (055 UTC)
59.3633°N 153.4333°W, Summit Elevation 4134 ft (1260 m)
Current Level of Concern Color Code: RED
Another explosive event at Augustine Volcano began today at 14:30 AST (23:30 UTC) with a small discrete explosion. The seismic activity continues and is consistent with continuous ash emission, which has also been observed in web camera images. On the basis of current satellite imagery, the National Weather Service has reported ash to 30,000 ft above sea level travelling south-southwest. The strength of the seismic signals is smaller than for previous explosive events in this eruptive sequence, including those from last night.
The first explosive event last night at 8:24 PM AST destroyed two seismic stations and one continuous GPS station. AVO still has four seismometers and three GPS stations operational on the island which allow us to monitor volcanic activity.
Satellite imagery from this morning indicates a widespread thermal anomaly to the north of the summit that is likely the result of pyroclastic flow deposits.
For current ash fall advisories and wind trajectories, refer to the National Weather Service website: http://pafc.arh.noaa.gov/augustine.php
ABBREVIATED COLOR CODE KEY
(contact AVO for complete description):
GREEN volcano is dormant; normal seismicity and fumarolic activity occurring
YELLOW volcano is restless; eruption may occur
ORANGE volcano is in eruption or eruption may occur at any time
RED significant eruption is occurring or explosive eruption expected at any time
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
email@example.com (907) 786-7497
John Eichelberger, Coordinating Scientist, UAF-GI
firstname.lastname@example.org (907) 474-5530 OR (907) 590-8247
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.