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LEVEL OF CONCERN COLOR CODE: ORANGE
LAST LEVEL OF CONCERN: ORANGE
Seismicity at Pavlof volcano showed a short-lived burst at about 1:00 PM ADT today. Lava fountaining in the crater continues. About 1:30pm ADT, pilots reported an ash plume from the volcano to 25,000 feet above sea level. Satellite observations at 2250 UT (2:50pm ADT) showed a narrow ash cloud 90 km long drifting northeast up the peninsula. The current activity is such that ash clouds may exceed 25,000 feet above sea level and would disburse within several hundred km. Short-lived bursts similar to that at 1:00pm today could occur at any time. The weather in the area is poor and the volcano is mostly obscured by clouds. AVO will continue to monitor the volcano closely and issue further updates as the situation warrants.
The nearest towns to the volcano are Cold Bay (37 mi),
King Cove (30 mi), Sand Point (60 mi), and Nelson Lagoon
(50 mi); these towns could expect light ash fall depending
on wind direction and continuing eruptive activity. Eruptive activity could cause mudflows and some flooding in the Cathedral River valley north of the volcano. Airborne ash hazards to aircraft may be considerable if a large
explosive event occurs but much less severe during a
typical Strombolian phase.
AVO has a seismic network of six stations near the volcano.