USGS Volcano Hazards Program Volcano Update

AVO update page and observatory web site

Recent clear satellite views of the summit lava dome extruded in late January 2013 show that it has remained unchanged over the past month. The last thermal anomaly was reported on February 26. In response, the Aviation Color Code and Volcano Alert Level for Cleveland was lowered this morning to YELLOW/ADVISORY.
Cleveland volcano forms the western half of Chuginadak Island, a remote and uninhabited island in the east central Aleutians. It is located 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 and it produced 3 explosive events that produced ash clouds as high as 12 km (39,000 ft) above sea level. The 2001 eruption also produced a rubbly lava flow and hot avalanche that reached the sea. The most recent minor ash emissions were observed in November 2012.

Update in Common Alerting Protocol (CAP) format