Printer friendly versionALASKA VOLCANO OBSERVATORY
Tuesday, January 31, 2006 9:10 AM AKST (1810 UTC)
59.3633°N 153.4333°W, Summit Elevation 4134 ft (1260 m)
Current Level of Concern Color Code: RED
Augustine volcano has been in a state of continuous eruption since 14:30 AKST (2330 UTC) January 28. Over the last 24 hours there have been no large seismic pulses like those known to have recently heralded ash plumes rising to over 25,000 ft above sea level. There have been a number of smaller discrete seismic signals that likely correspond to smaller ash-producing explosions. The number of these smaller events has increased slightly over the last 8 hours.
Visual observations from an overflight yesterday, as well as satellite data, show that an ash-bearing plume continues to emanate from the volcano. Overnight, National Weather Service radar showed that plumes did not exceed 13,000 feet above sea level and drifted generally north. For up-to-date Ashfall Advisories and wind trajectories, please refer to the National Weather Service website: http://pafc.arh.noaa.gov/augustine.php.
Clouds obscured satellite views of the volcano during the past twelve hours, thus no thermal anomalies were detected during this interval.
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
firstname.lastname@example.org (907) 786-7497
John Eichelberger, Coordinating Scientist, UAF-GI
email@example.com (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.