Fisher

Country: United States
Volcanic Region Group: North America Volcanic Regions
Volcanic Region: Aleutian Ridge Volcanic Arc
Volcano Landform: Composite
Primary Volcano Type: Stratovolcano
Activity Evidence: Eruption Observed
Last Known Eruption: 1830 CE
Latitude: 54.65
Longitude: -164.43
Elevation (meters): 1112
Tectonic Setting: Subduction zone / Continental crust (>25 km)
Dominant Rock Type: Andesite / Basaltic Andesite
Last Updated: 2026-03-09 19:18:33

Current Ash Alerts

Title: No Ash Alerts
Description: No Ash Alerts
Link: #
Guid: #

General News

Title: Fisher (United States) - Report for 5 March-11 March 2026 - Other Observations
Description:

The Alaska Volcano Observatory (AVO) reported that power to seismic monitoring instruments at Fisher had been restored following a failure which affected the ability to receive data. At 1118 on 9 March the Volcano Alert Level was moved to Normal and the Aviation Color Code was moved to Green.

Source: US Geological Survey Alaska Volcano Observatory (AVO)

Link: https://volcano.si.edu/reports_weekly.cfm
Guid: https://volcano.si.edu/reports_weekly.cfm#vn_311350

Current Alert Status

Alert Level: NORMAL
Color Code: GREEN
Cap Certainty: NULL
Cap Severity: NULL
Cap Urgency: NULL
Is Elevated Cap:
Prev Elevated Cap:
Notice Identifier: DOI-USGS-AVO-2026-03-09T19:02:39+00:00
Pub Date: 2026-03-09 19:18:33
Sent Date Cap: 2026-03-09 19:18:33
Cap Expires: 2026-03-09 19:18:33
Mail Subject: Alaska Volcano Observatory: Fisher
Author: Alaska Volcano Observatory
Synopsis: Archived
Guid: https://volcanoes.usgs.gov/hans-public/notice/DOI-USGS-AVO-2026-03-09T19:02:39+00:00
Prev Guid: NULL
Msg Type: Archived
Notice Type Cd: IS
Notice URL: https://volcanoes.usgs.gov/hans-public/notice/DOI-USGS-AVO-2026-03-09T19:02:39+00:00
Prev Notice URL: NULL
Notice Data: https://volcanoes.usgs.gov/hans-public/api/notice/getNotice/DOI-USGS-AVO-2026-03-09T19:02:39+00:00
Highest Alert Level: NORMAL
Highest Color Code: GREEN
Volcano Cds CSV: ak322,ak100

Notice Sections:

lat: 54.6692
lng: -164.3524
vnum: 311350
vName: Fisher
region: Aleutians
vImage:
summary:

Restoration of power in the City of Cold Bay has enabled the Alaska Volcano Observatory (AVO) to reestablish real-time data from seismic monitoring instruments near Fisher volcano. With renewed seismic monitoring, the volcano moves from UNASSIGNED to Volcano Alert Level NORMAL and Aviation Color Code GREEN. As at other Alaska volcanoes, AVO will continue to monitor seismic, satellite, infrasound, and lightning data, and reports from pilots and ground observers to detect signs of eruptive activity. 

synopsis: AVO Fisher GREEN/NORMAL - Aviation Color Code and Volcano Alert Level are changed to GREEN/NORMAL due to restoration of real-time seismic monitoring.
colorCode: GREEN
sectionId: DOI-USGS-AVO-2026-03-09T19:02:40+00:00
alertLevel: NORMAL
sectionHtml:

ALASKA VOLCANO OBSERVATORY INFORMATION STATEMENT
U.S. Geological Survey
Monday, March 9, 2026, 11:18 AM AKDT (Monday, March 9, 2026, 19:18 UTC)


FISHER (VNUM #311350)
54°40'9" N 164°21'9" W, Summit Elevation 3648 ft (1112 m)
Current Volcano Alert Level: NORMAL
Current Aviation Color Code: GREEN

Restoration of power in the City of Cold Bay has enabled the Alaska Volcano Observatory (AVO) to reestablish real-time data from seismic monitoring instruments near Fisher volcano. With renewed seismic monitoring, the volcano moves from UNASSIGNED to Volcano Alert Level NORMAL and Aviation Color Code GREEN. As at other Alaska volcanoes, AVO will continue to monitor seismic, satellite, infrasound, and lightning data, and reports from pilots and ground observers to detect signs of eruptive activity. 




This notice contains volcanoes not displayed here: Westdahl (NORMAL/GREEN).



CONTACT INFORMATION:

Chris Waythomas, Acting Scientist-in-Charge, USGS [email protected] (907) 786-7497

David Fee, Coordinating Scientist, UAFGI [email protected] (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.

lat: 54.5171
lng: -164.6476
vnum: 311340
vName: Westdahl
region: Aleutians
vImage:
summary:

Restoration of power in the City of Cold Bay has enabled the Alaska Volcano Observatory (AVO) to reestablish real-time data from seismic monitoring instruments at Westdahl volcano. With renewed seismic monitoring, the volcano moves from UNASSIGNED to Volcano Alert Level NORMAL and Aviation Color Code GREEN. As at other Alaska volcanoes, AVO will continue to monitor seismic, satellite, infrasound, and lightning data, and reports from pilots and ground observers to detect signs of eruptive activity. 

synopsis: AVO Westdahl GREEN/NORMAL - Aviation Color Code and Volcano Alert Level are changed to GREEN/NORMAL due to restoration of real-time seismic monitoring.
colorCode: GREEN
sectionId: DOI-USGS-AVO-2026-03-09T19:02:39+00:00
alertLevel: NORMAL
sectionHtml:

ALASKA VOLCANO OBSERVATORY INFORMATION STATEMENT
U.S. Geological Survey
Monday, March 9, 2026, 11:18 AM AKDT (Monday, March 9, 2026, 19:18 UTC)


WESTDAHL (VNUM #311340)
54°31'2" N 164°38'51" W, Summit Elevation 5118 ft (1560 m)
Current Volcano Alert Level: NORMAL
Current Aviation Color Code: GREEN

Restoration of power in the City of Cold Bay has enabled the Alaska Volcano Observatory (AVO) to reestablish real-time data from seismic monitoring instruments at Westdahl volcano. With renewed seismic monitoring, the volcano moves from UNASSIGNED to Volcano Alert Level NORMAL and Aviation Color Code GREEN. As at other Alaska volcanoes, AVO will continue to monitor seismic, satellite, infrasound, and lightning data, and reports from pilots and ground observers to detect signs of eruptive activity. 




This notice contains volcanoes not displayed here: Fisher (NORMAL/GREEN).



CONTACT INFORMATION:

Chris Waythomas, Acting Scientist-in-Charge, USGS [email protected] (907) 786-7497

David Fee, Coordinating Scientist, UAFGI [email protected] (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.

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