Fourpeaked volcano
Stratovolcano 2105 m / 6,906 ft
United States, Alaska Peninsula, 58.77°N / -153.67°W
Current status: dormant (1 out of 5)
Fourpeaked volcano books
United States, Alaska Peninsula, 58.77°N / -153.67°W
Current status: dormant (1 out of 5)
Fourpeaked volcano books
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Typical eruption style: unspecified
Fourpeaked volcano eruptions: 2006
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Fourpeaked volcano eruptions: 2006
| Time | Mag. / Depth | Distance | Location |
| Sun, 18 Jun | |||
| Sun, 18 Jun 15:06 UTC | M 2.0 / 130.1 km | 28 km | - 111km SSE of Old Iliamna, Alaska |
| Mon, 12 Jun | |||
| Mon, 12 Jun 01:52 UTC | M 2.1 / 81.1 km | 14 km | - 117km NW of Kodiak Station, Alaska |
| Thu, 1 Jun | |||
| Thu, 1 Jun 13:42 UTC | M 2.2 / 6.3 km | 25 km | - 116km SW of Anchor Point, Alaska |
| Sun, 28 May | |||
| Sun, 28 May 00:36 UTC | M 2.8 / 68.3 km | 18 km | - 121km NNW of Kodiak Station, Alaska |
| Mon, 15 May | |||
| Mon, 15 May 17:44 UTC | M 1.4 | 13 km | - 125km SE of Old Iliamna, Alaska |
Background:
Poorly known Fourpeaked volcano in NE Katmai National Park consists of isolated outcrops surrounded by the Fourpeaked Glacier, which descends eastward almost to the Shelikof Strait. The orientation of andesitic lava flows and extensive hydrothermal alteration of rocks near the present 2105-m-high summit suggest that it probably marks the vent of Fourpeaked volcano. Eruptive activity during the Holocene had not been confirmed prior to the first historical eruption of Fourpeaked in September 2006. A N-trending fissure extending 1 km from the summit produced minor ashfall.---
Smithsonian / GVP volcano information
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