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Yantarni volcano

Stratovolcano 1345 m / 4,413 ft
United States, Alaska Peninsula, 57.02°N / -157.19°W
Current status: dormant (1 out of 5)
Yantarni volcano books
Typical eruption style: unspecified
Yantarni volcano eruptions: 800 BC ± 500 years
TimeMag. / DepthDistanceLocation
Tue, 28 Mar
Tue, 28 Mar 20:24 UTCM 2.222 km- 135km NE of Chignik Lake, Alaska
Mon, 27 Mar
Mon, 27 Mar 18:33 UTCM 2.3 / 8.9 km34 km- 128km NNE of Chignik Lake, Alaska
Mon, 27 Mar 04:08 UTCM 2.5 / 18.9 km22 km- 120km NE of Chignik Lake, Alaska
Sun, 26 Mar
Sun, 26 Mar 16:46 UTCM 2.2 / 1 km20 km- 132km NE of Chignik Lake, Alaska
Sun, 26 Mar 15:59 UTCM 3.4 / 4.3 km28 km- 130km NE of Chignik Lake, Alaska
View all recent quakes

Background:

Yantarni is a small andesitic stratovolcano located between Aniakchak caldera and Chiginadak volcanoes that was not discovered until 1979. A large breached crater on the NE side, which was formed by collapse of the summit about 2000-3500 years ago, contains a lava dome that marks the volcano's 1345 m high point. This eruption, which resembled that of Mount St. Helens in 1980, began with a debris avalanche produced by the edifice collapse that was accompanied by a possible lateral blast and followed by the emplacement of 1 cu km of pyroclastic flows related to growth of the summit lava dome. No historical eruptions have been documented from Yantarni.
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Smithsonian / GVP volcano information


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