Akutan Volcano, Aleutian Islands, Alaska

Update 006

Alaska Volcano Observatory Update
Saturday, March 16, 1996 2:00 pm AST (2300 UTC)

Level Of Concern Color Code: ORANGE

Significant seismicity continues near Akutan volcano. The number of earthquakes presently being recorded is much lower than that recorded during the swarms of Monday and Wednesday night. However, the rate and intensity of earthquakes remain well above background. AVO scientists in Akutan report feeling only a few earthquakes last night. Our Level of Concern Color Code remains ORANGE indicating an eruption is possible at any time within the next few days. The following scenarios are still considered possible:

  1. Earthquake activity diminishes and no eruption occurs
  2. Eruption of a lava flow from a vent on the flank or within the summit caldera, accompanied by ash plumes and explosions
  3. Significant, explosive eruption producing ash plumes to altitudes of 30,000 ASL or higher.

Today, AVO scientists in Akutan are preparing to install additional seismic instrumentation to better monitor and interpret the situation. Yesterday at about 5:00 pm, a geologist flying into Akutan passed the north flank of the volcano and glimpsed a part of the flank and summit area through broken clouds. He observed no evidence of eruptive activity. The weather continues to be poor in the area hampering more thorough visual observations.

AVO is closely monitoring the situation. Further updates will be issued as information becomes available. Recordings of current information are available by calling 907-786-7478. Additionally, information on the Akutan situation is available on the Internet at: http://www.avo.alaska.edu/


Terry E.C. Keith
AVO Scientist-in-Charge
U.S. Geological Survey
4200 University Drive
Anchorage, AK  99508-4667
OFF=(907) 786-7443
FAX=(907) 786-7425

Chris Nye (Acting) AVO Coordinating Scientist Geophysical Institute University of Alaska Fairbanks, AK 99775 OFF=(907) 474-7430 FAX=(907) 474-5618 EMAIL=CNYE@GI.ALASKA.EDU
Tina Neal USGS/Alaska Volcano Observatory 4200 University Drive Anchorage, AK 99508 OFF=907-786-7456 FAX=907-786-7425