Kaguyak volcano

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)

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Typical eruption style: unspecified
Kaguyak volcano eruptions: 3850 BC (?) 

TimeMag. / DepthDistance/Location
Friday, October 15, 2021 20:09 GMT (1 earthquake)
Oct 15, 2021 12:09 pm (GMT -8) (Oct 15, 2021 20:09 GMT)
1.8

81 km
42 km (26 mi)
76 Km NNE of Karluk, Alaska
Thursday, October 14, 2021 01:13 GMT (1 earthquake)
Oct 13, 2021 5:13 pm (GMT -8) (Oct 14, 2021 01:13 GMT)
3.3

107 km
49 km (30 mi)
59 Km SE of Kokhanok, Alaska
Wednesday, October 13, 2021 03:01 GMT (1 earthquake)
Oct 12, 2021 7:01 pm (GMT -8) (Oct 13, 2021 03:01 GMT)
1.7

77 km
35 km (22 mi)
69 Km WNW of Aleneva, Alaska
Tuesday, October 12, 2021 15:35 GMT (1 earthquake)
Oct 12, 2021 7:35 am (GMT -8) (Oct 12, 2021 15:35 GMT)
1.9

87 km
45 km (28 mi)
51 Km WNW of Aleneva, Alaska

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.
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Smithsonian / GVP volcano information


See also: Sentinel hub | Landsat 8
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