Yantarni Volcano
Updated: Apr 20, 2024 02:17 GMT -
Stratovolcano 1345 m / 4,413 ft
United States, Alaska Peninsula, 57.02°N / -157.19°W
Current status: normal or dormant (1 out of 5)
United States, Alaska Peninsula, 57.02°N / -157.19°W
Current status: normal or dormant (1 out of 5)
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Yantarni volcano eruptions: 800 BC ± 500 years
Latest nearby earthquakes
Time | Mag. / Depth | Distance / Location | |||
Apr 16, 02:51 am (Anchorage) | 3.0 8.9 km | 29 km (18 mi) to the NW | 43 km SSW of Ugashik, Alaska I FELT IT | Info | |
Monday, April 8, 2024 GMT (1 quake) | |||||
Apr 8, 09:11 am (Anchorage) | 2.4 0 km | 11 km (7 mi) to the NW | 50 km S of Ugashik, Alaska | Info |
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.---
Smithsonian / GVP volcano information