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LEVEL OF CONCERN COLOR CODE: ORANGE
LAST LEVEL OF CONCERN: RED
Eruptive activity at Pavlof Volcano continues at an increased rate but the seismicity is down from the levels of this morning. Pilot reports received between 10:00 AM and 1:45 PM indicate no ash visible above the 19,000 foot cloud top level. The LEVEL OF CONCERN COLOR CODE has therefore been downgraded to ORANGE. The current seismicity suggests that strong explosive short-lived bursts of ash are still occurring but to altitudes less than 19,000 feet ASL. Weather conditions prevent direct observation of the volcano. AVO will 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