Printer friendly versionALASKA VOLCANO OBSERVATORY
CURRENT STATUS REPORT
Thursday, April 20, 2006 12:05 PM AKDT (2005 UTC)
59°21'48"N 153°26'W , Summit Elevation 4134 ft (1260 m)
Current Level of Concern Color Code: ORANGE
Rockfalls and avalanche events continue. Yesterday's gas measurement flight to Augustine documented continued growth of the summit lava dome and related avalanching of debris, primarily on the northwest flank of the volcano. A thermal anomaly persists in the vicinity of the summit.
Seismicity, rates of rockfall signals, and visual observations indicate lava effusion is continuing. Small, dilute ash clouds produced by 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. Web camera views of the volcano are obscured by clouds.
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.