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.

About Alaska Volcanoes

Alaska contains about 140 volcanoes and volcanic fields active within the last 2.6 million years (the Quaternary).

About 90 of these volcanoes have been active within the last 11,000 years (the Holocene), and more than 50 have been very recently active, within the last 300 years or so.

The volcanoes in Alaska make up more than three-quarters of U.S. volcanoes that have erupted in the past 200 years.

Most of Alaska’s volcanoes are located along the 2,500 km (1,500 mi) Aleutian Arc, which extends westward from the mainland of Alaska towards Kamchatka, and forms the northern portion of the Pacific “ring of fire.” Other volcanoes in Alaska that have been active in the last few thousand years exist in southeastern Alaska (Edgecumbe), and the Wrangell mountains. Smaller volcanoes, some active within the past 11,000 years, are found in interior Alaska and in western Alaska, as far north as the Seward Peninsula.

Check out our FAQ for answers to some common questions.

Or look at a volcano's page for more information about that volcano.