Kaguyak Volcano
Updated: Apr 20, 2024 03:16 GMT -
Lava domes 901 m / 2,956 ft
United States, Alaska Peninsula, 58.61°N / -154.03°W
Current status: normal or dormant (1 out of 5)
United States, Alaska Peninsula, 58.61°N / -154.03°W
Current status: normal or dormant (1 out of 5)
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Kaguyak volcano eruptions: 3850 BC (?)
Latest nearby earthquakes
Time | Mag. / Depth | Distance / Location | |||
Apr 16, 04:20 am (Anchorage) | 1.7 95 km | 9.9 km (6.2 mi) to the E | 81 km NW of Aleneva, Alaska | Info | |
Sunday, April 14, 2024 GMT (1 quake) | |||||
Apr 14, 01:18 pm (Anchorage) | 1.7 89 km | 12 km (7.3 mi) to the SE | 78 km NW of Aleneva, Alaska | Info | |
Thursday, April 11, 2024 GMT (1 quake) | |||||
Apr 11, 11:45 am (Universal Time) | 0.0 1.5 km | 18 km (11 mi) to the W | 96 km SSE of Kokhanok, Alaska | Info |
Background
The small, but spectacular 2.5-km-wide Kaguyak caldera in the NE part of Katmai National Park is filled by a >180-m-deep lake whose surface lies more than 550 m below the caldera rim. Kaguyak volcano is only 901 m high, but rises directly from lowland areas near sea level south of the Big River. Initially considered to be a typical stratovolcano truncated by a caldera, the pre-caldera edifice has been shown to consist of nine continuguous late-Pleistocene lava dome clusters, most of which lie east of the present caldera. A large post-caldera lava dome extends into the lake on the SW side and another dome forms a small island in the center of the lake. The youthful caldera is unglaciated, and distal tephras from the caldera-forming eruption have been radiocarbon dated at about 5800 years before present. Voluminous dacitic pyroclastic-flow deposits surround the caldera and reached Shelikof Strait to the SE.---
Smithsonian / GVP volcano information