Fourpeaked volcano
Stratovolcano 2105 m / 6,906 ft
United States, Alaska Peninsula, 58.77°N / -153.67°W
Current status: normal or dormant (1 out of 5)
United States, Alaska Peninsula, 58.77°N / -153.67°W
Current status: normal or dormant (1 out of 5)
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Fourpeaked volcano eruptions: 2006
Latest nearby earthquakes
| Time | Mag. / Depth | Distance/Location | ||
| Mon, 21 Jun 2021 (GMT) (5 earthquakes) | ||||
| 21 Jun 2021 14:41:26 GMT | 0.8 7.7 km | 4.2 km (2.6 mi) 92 Km NNW of Aleneva, Alaska | ||
| 21 Jun 2021 14:17:09 GMT | 1.2 36 km | 26 km (16 mi) Kodiak Island Region, Alaska | ||
| 21 Jun 2021 11:10:58 GMT | 1.9 5.1 km | 13 km (8.1 mi) 78 Km NNW of Aleneva, Alaska | ||
| 21 Jun 2021 06:58:32 GMT | 1.1 5.1 km | 3 km (1.9 mi) 88 Km NNW of Aleneva, Alaska | ||
| 21 Jun 2021 05:19:31 GMT | 1.6 9.3 km | 22 km (14 mi) 70 Km NNW of Aleneva, 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
See also: Sentinel hub | Landsat 8
