Printer friendly versionALASKA VOLCANO OBSERVATORY
CURRENT STATUS REPORT
Thursday, February 23, 2006 12:25 PM AKST (2125 UTC)
59°21'48"N 153°26'W , Summit Elevation 4134 ft (1260 m)
Current Level of Concern Color Code: ORANGE
Unrest continues at Augustine Volcano. Over the past 24 hours, seismicity has been relatively low but remains above background levels. Seismic data indicates that small rockfalls and avalanches from the lava dome are occurring intermittently. Satellite images of the volcano last night show that a thermal anomaly in the summit area persists.
A plume composed of variable amounts of gas, steam, and small amounts of ash is likely being emitted intermittently from Augustine's summit. Occasional, but localized ash clouds and light ash fall will be produced by collapses of the lava dome. Evidence of light ash fall on the flanks of the volcano is visible in images from the on-island web camera from yesterday and today.
During dome building eruptions, brief, energetic explosions can occur with little or no warning. Such explosions could produce larger amounts of ash leading to the formation of drifting ash clouds that could rise more than 25,000 feet above sea level.
Dome building eruptive activity will likely continue over the next few days or weeks and may continue intermittently over the next several months.
AVO is monitoring the situation closely and the observatory remains staffed 24/7. For up-to-date Ashfall Advisories and wind trajectories, please refer to the National Weather Service website: http://pafc.arh.noaa.gov/augustine.php
KOROVIN VOLCANO (ATKA ISLAND)
52°22'52"N 174°9'15"W , Summit Elevation 5030 ft (1533 m)
Current Level of Concern Color Code: YELLOW
Seismicity at Korovin Volcano remains slightly above background. Clouds have obscured views of the volcano by satellite. AVO has received no reports of activity at the volcano. Observers in Atka village could see the summit of Korovin this morning, but saw no obvious signs of activity. 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
Chris Waythomas, Acting Scientist-in-Charge, USGS
firstname.lastname@example.org (907) 786-7497
Steve 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.