Kanaga Volcano

Kanaga Volcano, or Mount Kanaga, is an active stratovolcano at the north end of Kanaga Island in Alaska’s Aleutian Islands. It rises within a caldera bordered by Kanaton Ridge on the south and east, with a crater lake on the caldera floor and a fumarolic summit crater. About 25 kilometers west of the U.S. Navy installation and port on Adak Island, it has affected the nearest settled community with ashfall during intermittent eruptions in 1994. After its previous eruption in February 2012, months of elevated seismic activity in 2023 culminated in a steam-driven explosion on December 18, 2023, and unrest has continued under observation.

Adak, Alaska · United States