AST Code RED declared during an exceptionally vigorous burst of activity. Satellite image shows ash plume extending 250 km downwind. Local observer reports ash plume to 25,000 feet above sea level. Later in the day weather obscures volcano. Oct. 21 - Nov. 22 Continuous, and generally increasing seismic tremor.
Strombolian eruption continues.
Sept. 16 - Oct. 18 Continuous, and generally increasing, seismic tremor. Continuous strombolian eruption with fire fountaining at two closely-spaced summit vents feeding lava flows on the north flank of the volcano. Incandescent material typically ejected to 100 to 300 meters above the summit. Low-level ash plumes periodically deposit small amounts of ash on local communities and the surround area. ADT Local residents see steam plumes, some ash, and incandescent bombs being ejected from Pavlof Volcano for the first time this decade.