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Saturday, Nov 11, 2006
Low-level earthquake activity continues at Fourpeaked volcano. Web camera views this past week show a typical steam plume rising several hundred meters above the summit.
Saturday, Feb 26, 2005
The first known historic eruption of Fourpeaked volcano on the Alaska peninsula is taking its course. Several vents emitting gasses and ash have appeared on the glacier-topped volcano and are slowly melting the ice cap.
Stratovolcano 2105 m / 6,906 ft
United States, Alaska Peninsula, 58.77°N / -153.67°WCurrent status
(1 out of 5)Fourpeaked volcano books
Typical eruption style
Fourpeaked volcano eruptions
View all recent quakes
|Time||Mag. / Depth||Distance||Location|
|Thu, 13 Apr|
|Thu, 13 Apr 10:03 UTC||M 1.2 / 8.7 km||5 km||- 126km SSE of Old Iliamna, Alaska|
|Thu, 13 Apr 08:43 UTC||M 1.7 / 8.1 km||4 km||- 125km NNW of Kodiak Station, Alaska|
|Thu, 13 Apr 08:24 UTC||M 1.4 / 3.2 km||8 km||- 123km SSE of Old Iliamna, Alaska|
|Thu, 13 Apr 07:42 UTC||M 2.5 / 7.5 km||3 km||- 125km NNW of Kodiak Station, Alaska|
|Wed, 12 Apr|
|Wed, 12 Apr 19:09 UTC||M 1.6||1 km||- 128km NNW of Kodiak Station, Alaska|
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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