ALASKA VOLCANO OBSERVATORY INFORMATION STATEMENT
U.S. Geological Survey
Monday, March 2, 2026, 2:20 PM AKST (Monday, March 2, 2026, 23:20 UTC)
WESTDAHL (VNUM #311340)
54°31'2" N 164°38'51" W, Summit Elevation 5118 ft (1560 m)
Current Volcano Alert Level: UNASSIGNED
Current Aviation Color Code: UNASSIGNED
A power failure in the City of Cold Bay has affected the Alaska Volcano Observatory (AVO) facility that receives seismic monitoring data from instruments around Westdahl volcano and relays it to AVO offices for analysis. Although some data from other stations on Unimak Island continue to flow in the AVO system, the remaining equipment does not provide enough information to confirm that the volcano is at normal background activity. Repairs are underway, and once power is restored to the AVO receive facility in Cold Bay, AVO’s instruments will resume functioning.
Because of the loss of adequate real-time seismic data, the Aviation Color Code and Volcano Alert Level for Westdahl volcano have been changed to UNASSIGNED/UNASSIGNED.
As with other volcanoes not currently monitored by on-site seismic networks, AVO will continue to rely on satellite observations, regional seismic and infrasound data, lightning-detection networks, and reports from pilots and local observers to identify signs of volcanic unrest.
FISHER (VNUM #311350)
54°40'9" N 164°21'9" W, Summit Elevation 3648 ft (1112 m)
Current Volcano Alert Level: UNASSIGNED
Current Aviation Color Code: UNASSIGNED
A power failure in the City of Cold Bay has affected the Alaska Volcano Observatory (AVO) facility that receives seismic monitoring data from instruments around Fisher volcano and relays it to AVO offices for analysis. Although some data from other stations on Unimak Island continue to flow in the AVO system, the remaining equipment does not provide enough information to confirm that the volcano is at normal background activity. Repairs are underway, and once power is restored to the AVO receive facility in Cold Bay, AVO’s instruments will resume functioning.
Because of the loss of adequate real-time seismic data, the Aviation Color Code and Volcano Alert Level for Fisher volcano have been changed to UNASSIGNED/UNASSIGNED.
As with other volcanoes not currently monitored by on-site seismic networks, AVO will continue to rely on satellite observations, regional seismic and infrasound data, lightning-detection networks, and reports from pilots and local observers to identify signs of volcanic unrest.
CONTACT INFORMATION:
Matt Haney, Scientist-in-Charge, USGS mhaney@usgs.gov (907) 786-7497
David Fee, Coordinating Scientist, UAFGI dfee1@alaska.edu (907) 378-5460
Contact AVO: https://avo.alaska.edu/contact
The Alaska Volcano Observatory is a cooperative program of the U.S. Geological Survey, the University of Alaska Fairbanks Geophysical Institute, and the Alaska Division of Geological and Geophysical Surveys.
Hazard Notification System (HANS) for Volcanoes at volcanoes.usgs.gov/hans2/