Printer friendly versionALASKA VOLCANO OBSERVATORY
CURRENT STATUS REPORT
Wednesday, May 4, 2005 3:45 PM AKDT (23:45 UTC)
ALASKA VOLCANOES WITH ELEVATED COLOR CODES:
MOUNT SPURR VOLCANO
61°18'N 152°15'W, Summit Elevation 11,070 ft. (3,374 m)
Current Level of Concern Color Code: YELLOW
The level of seismic activity remains above background. Clouds obscured views of the volcano by satellite and web camera throughout the day. There are no indications that an eruption is imminent.
A pilot report received yesterday described a debris flow feature below the Spurr summit. AVO staff were able to see this feature from Anchorage using high-powered binoculars prompting an overflight. Despite some cloud cover, AVO staff observed an approximatly 600 meter long debris flow emanating from the ice and snow at about 9500 ft ASL east-southeast of the summit melt pit. This debris flow is similar to those observed in July 2004. Clear views of the melt pit showed that the lake level has decreased since our April 25 overflight. This lake level drop indicates outflow of water from the lake which may have coincided with emplacement of the recent debris flow. Analysis of web camera images suggest that the debris flow occurred late on the morning of
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
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.