Printer friendly versionALASKA VOLCANO OBSERVATORY
CURRENT STATUS REPORT
Tuesday, April 11, 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
Seismicity over the past 24 hours at Augustine has remained low, but still above background. The on-island webcam shows no unusual conditions or activity. Satellite views have been obscured by clouds.
The present level of seismicity, although low, indicates that eruptive activity continues but at a low level. It is possible for occasional hot block-and-ash flows, rock avalanches, and rock falls originating from the summit lava dome to occur. Hot rock avalanches from the steep snouts of the lava flows on the north and northeast flanks may also occur occasionally. Small, dilute ash clouds resulting from these processes may be generated, but are likely to be confined to the immediate vicinity of the volcano. During periods of high wind at the volcano, minor amounts of ash may be swept from the flanks and carried downwind.
Lava extrusion and dome-building eruptive activity is likely to continue intermittently over the next several weeks to months. Brief, energetic explosions of ash can occur with little or no warning. Such explosions could produce significant amounts of ash and drifting ash clouds that could rise more than 25,000 feet above sea level.
AVO is monitoring Augustine 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
56°11'44"N 159°23'18"W , Summit Elevation 8225 ft (2507 m)
Current Level of Concern Color Code: YELLOW
Seismicity remains low. Webcam views are cloudy today. Satellite views show nothing unusual.
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
Chris Nye, Acting Coordinating Scientist, UAF-GI
email@example.com (907) 474-7430
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.