Tana

Tana is an eroded volcano at the eastern end of Chuginadak Island in Alaska’s Aleutian Islands, within the Islands of Four Mountains. It consists of paired stratovolcanic cones linked westward toward Cleveland by a narrow strip of land with young cinder cones. As part of the Aleutian Arc, it formed where the Pacific Plate is forced beneath the North American Plate along the Aleutian Trench, a setting shared by nearby volcanoes on Herbert, Kagamil, and Carlisle. No historically dated eruption is known, but Tana remains active, with hot springs, fumaroles, mudpots, and acidic waters showing persistent heat near the surface.

Nikolski, Alaska · United States