Printer friendly versionALASKA VOLCANO OBSERVATORY
CURRENT STATUS REPORT
Tuesday, April 18, 2006 1:30 PM AKDT (2130 UTC)
59°21'48"N 153°26'W , Summit Elevation 4134 ft (1260 m)
Current Level of Concern Color Code: ORANGE
Seismicity over the past 24 hours at Augustine has increased markedly and is mainly associated with rock fall activity. Low winds today allow the steam plume to rise 1000-2000 feet (300-600 m) directly above the summit as seen in images from the Homer web camera. Satellite views show that a thermal anomaly persists in the vicinity of the summit.
Overall the present levels of seismicity, rates of rockfall signals, and recent visual observations of the volcano suggest effusive activity remains at a low level. Small, dilute ash clouds resulting from occasional rockfalls and avalanches may still occur, but are unlikely to extend beyond Augustine Island. Brief energetic explosions of ash are still possible.
AVO is monitoring Augustine closely and the observatory remains staffed 24/7.
56°11'44"N 159°23'18"W , Summit Elevation 8225 ft (2507 m)
Current Level of Concern Color Code: YELLOW
Seismicity remains low. The web camera today shows an steam plume rising from the intracaldera cone and drifting to the northeast.
Production of short-lived, very small-volume steam and ash bursts from the intracaldera cone has been typical of this volcano intermittently over the past few years. There are no indications that a larger eruption is imminent. Ash clouds and fallout from these events are not likely to extend beyond the caldera rim, but could pose a hazard to people and low-flying aircraft in the vicinity of the active cone.
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
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.