Printer friendly versionALASKA VOLCANO OBSERVATORY
Monday, October 30, 2006 9:00 AM AKST (1800 UTC)
52°49'24" N169°56'35" W, Summit Elevation 5676 ft (1730 m)
Current Aviation Color Code: YELLOW
Current Volcanic Activity Alert Level: Advisory
AVO is lowering the aviation color code to Yellow
and the volcanic activity alert level to Advisory
for Cleveland Volcano. There is no evidence of further activity at the volcano since the event on Oct. 28. Short-duration eruptions such as that event have been typical of Cleveland over the last several years. There is no seismic network on Cleveland; AVO monitors Cleveland chiefly by satellite.
Frequently active Cleveland volcano forms the western half of Chuginadak Island, a remote and uninhabited island in the east central Aleutians. It is located about about 75 km (45 mi) west of the community of Nikolski, and 1500 km (940 mi) southwest of Anchorage. The volcano's most recent significant eruption began in February, 2001 producing 3 explosive events and ash clouds as high as 12 km (39,000 ft) above sea level. This eruption also produced a rubbly lava flow and hot avalanche that reached the sea. Since that eruption, numerous short-lived explosions of ash reaching approximately 20,000 feet above sea level have been recorded.
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
firstname.lastname@example.org (907) 786-7497
John Eichelberger, Coordinating Scientist, UAF
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.