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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) | Reports
Kaguyak volcano books
Typical eruption style: unspecified
Kaguyak volcano eruptions: 3850 BC (?) 
TimeMag. / DepthDistanceLocation
Thu, 12 Jul
Thu, 12 Jul 16:28 UTCM 1.4 / 69 km25 km- 103km NNW of Kodiak Station, Alaska
Fri, 6 Jul
Fri, 6 Jul 02:16 UTCM 3.2 / 117.7 km39 km- 110km S of Old Iliamna, Alaska
Wed, 4 Jul
Wed, 4 Jul 00:53 UTCM 1.6 / 64.2 km37 km- Kodiak Island region, Alaska
Tue, 3 Jul
Tue, 3 Jul 02:20 UTCM 1.5 / 119.4 km43 km- 95km SSE of Old Iliamna, Alaska
Sun, 1 Jul
Sun, 1 Jul 13:58 UTCM 1.8 / 109.2 km29 km- 109km SSE of Old Iliamna, Alaska
View all recent quakes

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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