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Atka volcano

Stratovolcanoes 1451 m / 4,760 ft
United States, Aleutian Islands, 52.33°N / -174.14°W
Current status: normal or dormant (1 out of 5) | Reports
Atka volcano books
Typical eruption style: unspecified
Atka volcano eruptions: 1987 
TimeMag. / DepthDistanceLocation
Tue, 17 Dec 2019
Tue, 17 Dec 09:25 UTCM 0.3 / 3.7 km3 km16km N of Atka, Alaska (USA)
Tue, 17 Dec 09:24 UTCM 0.7 / 5.3 km3 km16km N of Atka, Alaska (USA)
Fri, 13 Dec 2019
Fri, 13 Dec 08:44 UTCM 0.5 / 2.1 km2 km17km NNE of Atka, Alaska (USA)
Thu, 12 Dec 2019
Thu, 12 Dec 02:53 UTCM 0.9 / 9.9 km29 km14km SW of Atka, Alaska (USA)
Thu, 5 Dec 2019
Thu, 5 Dec 08:35 UTCM 0.3 / 5.2 km3 km12km NNE of Atka, Alaska (USA)
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The largest volcanic center in the central Aleutians, Atka consists of a central shield and Pleistocene caldera with several post-caldera volcanoes. A major dacitic explosive eruption accompanied formation of the caldera about 500,000 to 300,000 years ago. The most prominent of the post-caldera stratovolcanoes are Kliuchef and Sarichef, both of which may have been active in historical time. Sarichef has a symmetrical profile, but the less eroded Kliuchef is the source of most if not all historical eruptions. Kliuchef may have been active on occasion simultaneously with Korovin volcano to the north. Hot springs and fumaroles are located on the flanks of Mount Kliuchef and in a glacial valley SW of Kliuchef.
Smithsonian / GVP volcano information

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