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Alaska Volcano Observatory | Home The Alaska Volcano Observatory (AVO) is a consortium of the U S Geological Survey, the University of Alaska Fairbanks Geophysical Institute, and the State of Alaska Division of Geological Geophysical Surveys
Alaska Volcano Observatory | Volcanoes of Alaska Below is an alphabetical list of volcanoes These links will take you to information specific to that volcano Each volcano has descriptions, images, maps, bibliography, and eruption history indicates a volcano is recently active indicates a volcano was active in the Holocene indicates a volcano has been active within the last 2 million years, but not within the last 10,000 years
Alaska Volcano Observatory | Spurr Low-level unrest continues at Mount Spurr with occasional, small earthquakes occurring beneath the volcano No activity was observed in clear satellite and webcam views from the past day Fluctuations in unrest are common at volcanoes and eruptive activity remains possible, but unlikely Should unrest escalate towards an eruption, we expect to observe increases in seismic activity, gas
Alaska Volcano Observatory | About AVO The Alaska Volcano Observatory (AVO) is a consortium of the U S Geological Survey, the University of Alaska Fairbanks Geophysical Institute, and the State of Alaska Division of Geological Geophysical Surveys
Alaska Volcano Observatory | Hazard Notification System 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
Alaska Volcano Observatory | Spurr Information Statement April 17, 2025 Alert level definitions can be found here: Alaska Volcano Observatory | Volcano Alert Levels Current Hazards While the likelihood of an eruption without additional warning is currently low, the volcano poses hazards for recreators on Mount Spurr
Alaska Volcano Observatory | Library Explore AVO’s volcano-related data! References: Search more than 5,000 references containing information on young volcanism in Alaska Webicorder: All the webicorder links in one place, as well as information on how to read a seismic webicorder Hazard Alert System: Search AVO’s formal information products – daily updates, weekly updates, information statements, and Volcano Activity
Alaska Volcano Observatory | Volcano Alert Levels Volcano alert-levels characterize conditions at U S volcanoes The Alaska Volcano Observatory uses the USGS alert-level system for volcanic activity, which has two parts: 1 Ranked terms to inform people on the ground about a volcano's status 2 Ranked colors to inform the aviation sector about airborne ash hazards More information can be