Printer friendly versionALASKA VOLCANO OBSERVATORY
Friday, February 3, 2006 4:50 PM AKST (150 UTC)
59.3633°N 153.4333°W, Summit Elevation 4134 ft (1260 m)
Current Level of Concern Color Code: ORANGE
Seismic data indicate that eruptive activity continues intermittently and has changed little in character or intensity over the past 24 hours. Eruptive activity is characterized by low-level explosions, pyroclastic flows, and sustained production of ash.
Poor visibility prevented clear observation of the volcano by AVO observers in a fixed wing aircraft this afternoon. They reported that a plume emerged from the cloud tops and reached no higher than 6,000 feet above sea level. It was comprised mainly of condensed steam, with more ash-rich clouds being produced occasionally from a source slightly farther down the northern flank. The ash-rich clouds likely resulted from pyroclastic flows. Sea ice off the western shore of Augustine Island had ash deposited on it.
An AVO field crew flew in a helicopter to Augustine today. They added batteries to the station at Mound and cleaned ash from the web camera's lens and housing. They also finished the installation of a new seismic station. The seismic station is located on the lower flanks of the volcano in the southeast quadrant of the island.
Further explosive activity producing ash clouds to altitudes over 25,000 feet may still occur with little or no warning. AVO is monitoring the situation closely and the observatory is staffed 24/7. Please refer to our hourly updates and information releases for the most up-to-date status of volcanic activity. For up-to-date Ashfall Advisories and wind trajectories, please 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.