Printer friendly versionALASKA VOLCANO OBSERVATORY
Monday, January 16, 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
The level of earthquake activity at Augustine Volcano remains relatively low since the last explosive event on 00:16 AST (0916 UTC), January 14, 2006. High winds recorded over the last day have subsided somewhat. An AVO gas overflight today has just returned with new visual observations. Gases were successfully measured and results are being processed. Observations confirm that pyroclastic deposits are widespread on the flanks of the volcano as seen in web camera images. Flowage deposits extend to the coastline in several places on the SE flank. A small lava dome appears to have extruded at the summit.
The level of seismic activity at the volcano remains above background. It is likely, but not certain, that further explosive activity will occur. Explosive events similar to those of January 13 and 14 could occur with little or no warning. AVO will continue 24/7 staffing and will be monitoring activity closely.
Information about the status of Augustine Volcano can be found on the AVO web site (www.avo.alaska.edu) and specific questions should be directed to 907-786-7497.
Augustine Volcano is a 1260 m high (4134 ft) conical-shaped island stratovolcano located in southern Cook Inlet, about 290 km (180 mi) southwest of Anchorage, Alaska and 120 km (75 mi) southwest of Homer, Alaska. Historically, Augustine is the most active volcano in the Cook Inlet region with significant eruptions in 1812, 1883, 1908, 1935, 1963-64, 1976, and 1986. These eruptions were primarily explosive events that produced volcanic ash clouds (to 30,000-40,000 feet above sea level), ash fall, pyroclasic flows, and lava domes or flows. During the 1883 eruption, a large avalanche on the north flank of the volcano flowed into Cook Inlet and may have initiated a tsunami observed at Nanwalek, about 90 km to the east.
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
Steve McNutt, Acting Coordinating Scientist, UAF-GI
firstname.lastname@example.org (907) 474-7131 OR (907) 474-7274
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.