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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: dormant (1 out of 5)
Kaguyak volcano books
Typical eruption style: unspecified
Kaguyak volcano eruptions: 3850 BC (?) 
TimeMag. / DepthDistanceLocation
Sun, 12 Nov
Sun, 12 Nov 20:56 UTCM 2.3 / 3.8 km9 km- 103km NNW of Larsen Bay, Alaska
Fri, 10 Nov
Fri, 10 Nov 21:47 UTCM 2.0 / 8.6 km2 km- 127km NNW of Kodiak Station, Alaska
Wed, 8 Nov
Wed, 8 Nov 06:26 UTCM 1.5 / 77.4 km9 km- 109km N of Larsen Bay, Alaska
Sat, 4 Nov
Sat, 4 Nov 02:47 UTCM 2.52 km- 99km NNW of Larsen Bay, Alaska
Thu, 26 Oct
Thu, 26 Oct 17:01 UTCM 2.0 / 138.4 km45 km- 95km SSE of Old Iliamna, 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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