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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
Mon, 29 May
Mon, 29 May 09:54 UTCM 2.3 / 100 km21 km- 117km NE of Chignik Lake, Alaska
Sun, 14 May
Sun, 14 May 20:41 UTCM 2.9 / 86.8 km43 km- 121km NW of Chirikof Island, Alaska
Thu, 11 May
Thu, 11 May 09:10 UTCM 2.3 / 14.6 km10 km- 124km NE of Chignik Lake, Alaska
Tue, 9 May
Tue, 9 May 23:59 UTCM 2.031 km- 135km NE of Chignik Lake, Alaska
Sat, 29 Apr
Sat, 29 Apr 14:03 UTCM 2.1 / 6.3 km7 km- 161km S of King Salmon, 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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