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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) | Reports
Kaguyak volcano books
Typical eruption style: unspecified
Kaguyak volcano eruptions: 3850 BC (?) 
TimeMag. / DepthDistanceLocation
Fri, 16 Nov
Fri, 16 Nov 12:15 UTCM 1.0 / 2 km14 km- 115km N of Larsen Bay, Alaska
Sat, 10 Nov
Sat, 10 Nov 11:02 UTCM 1.4 / 84.1 km12 km- 106km N of Larsen Bay, Alaska
Fri, 9 Nov
Fri, 9 Nov 22:58 UTCM 2.4 / 7.2 km22 km- 105km SE of Old Iliamna, Alaska
Sun, 4 Nov
Sun, 4 Nov 14:03 UTCM 2.25 km- 126km NNW of Kodiak Station, Alaska
Thu, 1 Nov
Thu, 1 Nov 00:52 UTCM 1.3 / 10 km7 km- 96km NNW of Larsen Bay, Alaska
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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


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