Pavlof volcano news & activity updates:
Pavlov volcano (Alaska Peninsula, USA) activity update
Monday May 20, 2013 10:30 AM | BY: T
The eruption continues with no significant changes. Small lava fountaining, explosions, and the explosive interaction of the lava flow with snow and ice generate a plume of steam, ash, and gas, occasionally reaching up to 22,000 ft. above sea level, and extending primarily southeast from the volcano over the North Pacific Ocean visible in satellite images.
Minor ash fall is likely occurring on the north, east and southeast flanks of the volcano and possibly on parts of Pavlof Bay and adjacent waters southeast of the volcano.
Seismic activity remains elevated with nearly continuous volcanic tremor being recorded on the local seismic network. Although the activity to date has been characterized by relatively low-energy lava fountaining and ash emission, more energetic explosions could occur without warning at any time that could place ash clouds above 20,000 ft. Depending on wind direction, trace to minor amounts of ash may fall on nearby communities, including Sand Point, Nelson Lagoon, King Cove and Cold Bay. (AVO)
Sunday, May 19, 2013
The eruption continues with lava fountaining, an active lava flow and ash emissions, accompanied by continuous seismic tremor. Aerial observations suggest that the interaction of lava and ice on the upper slope of the volcano create mud flows and pyroclastic flows. ... [more]
Friday, May 17, 2013
The eruption continues with lava fountaining at the summit that feeds a lava flow now over 100 m long and produces a continuous ash, steam, and gas plume extending downwind from the volcano for 50 to 100 km at an altitude of about 20,000 ft above sea level. This morning the cloud was carried to the southeast. Satellite images show persistent elevated surface temperatures at the summit and on the northwest flank. ... [more]
Thursday, May 16, 2013
The eruption continues. The volcano produces a lava flow on the northwest flank. Interaction of the lava flow and ice, producing debris flows, as well as possible explosions at the vent produce a steam-ash plume rising up to about 20,000 ft. above sea level. ... [more]
Wednesday, May 15, 2013
Eruptive activity on 13 May at Pavlof has been confirmed. Pilot images have shown a new spatter fed lava flow extending 500 m down the N flank of the volcano. ... [more]
Tuesday, May 14, 2013
Seismic activity has decreased today, but remains elevated. MODIS data confirm a hot spot at the summit, which could suggest a small lava flow there. [more]