260:. Akutan Peak, at 4,275 feet (1,303 m), is the highest point on the caldera of the Akutan stratovolcano. Akutan contains a 2 km-wide caldera formed during a major explosive eruption about 1600 years ago. Recent eruptive activity has originated from a large cinder cone on the NE part of the caldera. It has been the source of frequent explosive eruptions with occasional lava effusion that blankets the caldera floor. A lava flow in 1978 traveled through a narrow breach in the north caldera rim to within 2 km of the coast. A small lake occupies part of the caldera floor. Two volcanic centers are located on the NW flank: Lava Peak is of Pleistocene age; and, a cinder cone lower on the flank which produced a lava flow in 1852 that extended the shoreline of the island and forms Lava Point. An older, mostly buried caldera seems to have formed in
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of the volcanic edifice, including a lowering of the eastern side and a rise of the western side of the volcano.
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has recorded 33 confirmed eruptions at Akutan, making it the volcano with the most eruptions in Alaska.
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Map showing volcanoes of Alaska. The mark is set at the location of Mount Akutan.
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North-East of the caldera. In March 1996, an earthquake swarm was followed by
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Volcanoes of the Alaska
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Aerial view of Akutan volcano that forms the west part of Akutan Island
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Lu, Zhong; Wicks, Charles; Power, John A.; Dzurisin, Daniel (2000).
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Stratovolcano with a caldera in the
Aleutian islands of Alaska, U.S.
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The volcano erupted most recently in 1992, but there is still
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159:Parent range
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135:Mount Akutan
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85:165°59′08″W
72:Coordinates
485:Categories
453:2015-07-21
403:2008-05-17
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303:References
82:54°07′59″N
55:Prominence
281:fumarolic
213:Volcanic
110:Geography
45:Elevation
330:"Akutan"
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172:Topo map
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
