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LEVEL OF CONCERN COLOR CODE: RED
LAST LEVEL OF CONCERN: ORANGE
Eruptive activity significantly increased at Pavlof Volcano at 0800 AST and the LEVEL OF CONCERN COLOR CODE has been raised to RED. Seismicity, satellite imagery and recent pilot reports indicate that short-lived bursts of ash are going to 25,000 feet or more ASL and extending downwind to the east for 100 miles or more. Weather conditions currently prevent direct observation of the volcano. AVO will continue to monitor the volcano closely and adjust the Level of Concern Color Code as necessary.
Pavlof is located 600 miles southwest of Anchorage. The
nearest towns to the volcano are Cold Bay (37 mi SW), King
Cove (30 mi SW), Sand Point (60 mi E), and Nelson Lagoon
(50 mi NE). These towns could expect light ash fall
depending on wind direction and level of eruptive
activity. Mudflows and some flooding could occur near the
volcano. The hazard to aircraft from airborne ash may be
considerable if a large explosive event occurs, however
during the more typical lava fountaining activity at
present, this hazard is minor.
Seismic activity at Spurr, Redoubt, and Augustine
volcanoes remains at normal background levels.
AVO maintains a computerized alarm system capable of
notifying AVO seismologists during non-business hours
should unusual seismic activity occur at Spurr, Iliamna,
Augustine, or Akutan volcanoes. AVO continues to test new
seismic networks at Pavlof, Dutton, Makushin, Akutan, and
Katmai area volcanoes. Reports on these volcanoes will be
added to this update as data acquisition and analysis
become reliable. We anticipate that this will occur by