-164.650 54.516 32185 Westdahl normal #n highlight #h -164.650 54.516 32185 1 clampToGround -164.650,54.516,0 #volcanoes
Aleutian Islands Volcano type:
    Stratovolcano? Summit Elev: 1563 m
Latitude: 54.516°N
Longitude: 164.65°W

Westdahl is a broad glacier-covered volcano occupying the SW end of Unimak Island. Two peaks protrude from the summit plateau, and a new crater formed in 1978 cuts the summit icecap. The volcano has a somewhat of a shield-like morphology and forms one of the largest volcanoes of the Aleutian Islands. The sharp-topped, conical Pogromni stratovolcano, 6 km N, rises several hundred meters higher than Westdahl, but is moderately glacially dissected and presumably older. Many satellitic cones of postglacial age are located along a NW-SE line cutting across the summit of Westdahl. Some of the historical eruptions attributed to the eroded Pogromni may have originated instead from Westdahl (Miller et al. 1998). The first historical eruption occurred in 1795. An 8-km-long fissure extending east from the summit produced explosive eruptions and lava flows in 1991.

Smithsonian Volcano Information

Faris Peak -164.686 54.528 32185 1 clampToGround -164.686,54.528,0 #Feature Cone of Westdahl ]]> Pogromni -164.693 54.57 32185 1 clampToGround -164.693,54.57,0 #Feature Stratovolcano of Westdahl ]]> Pogromni's Sister -164.684 54.598 32185 1 clampToGround -164.684,54.598,0 #Feature Stratovolcano of Westdahl ]]> Westdahl -164.65 54.516 32185 1 clampToGround -164.65,54.516,0 #Feature Stratovolcano of Westdahl ]]>