Sunday, February 19, 2012

Alaska'a Kanaga Volcano Raised To Alert Level Yellow

Alaska's Kanaga Volcano in the Aleutian Islands is showing signs of activity according to seismicity and observations made by AVO. The latest report states:

"Possible explosive activity and a likely ash cloud indicate new unrest at Kanaga Volcano. AVO is increasing the Aviation Color Code to YELLOW and the Volcano Alert Level to ADVISORY.Volcanic tremor was detected from 15:23-15:27 UTC (6:23 AM AKST) followed by numerous small events for about an hour at Kanaga Volcano. A possible weak ash cloud was also detected in AVHRR satellite data from 15:35 UTC about 39 km (24 mi) NE of the volcano.This new unrest indicates a possibility for sudden explosions of ash to occur at any time, and ash clouds exceeding 20,000 feet above sea level may develop. If a large, explosive, ash-producing event occurs, the local seismic network, satellite ash alarms, infrasound, and volcanic lightning will alert AVO to the new activity."

Kanaga's last eruptive phase was in 1994-1995, and produced large ash plumes reaching up to 20,000 meters. 

No comments:

Post a Comment

Comments are moderated. See the comment policy for details.