United States · Stratovolcano
Fourpeaked Mountain
Fourpeaked
- Type
- Stratovolcano
- Elevation
- 2105m
- Last eruption
- 2006
- Type
- Stratovolcano
- Country
- United States
- Region
- North America / Alaska Peninsula Volcanic Arc
- Elevation
- 2105m
- Coordinates
- 58.770, -153.672
- Last eruption
- 2006
- Tectonic setting
- Subduction zone / Continental crust (> 25 km)
- Landform
- Composite
- Major rock type
- Andesite / Basaltic andesite
Geological summary
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 summit suggest that it probably marks the vent area. Eruptive activity during the Holocene had not been confirmed prior to the first historical eruption in September 2006. A N-trending fissure extending 1 km from the summit produced minor ashfall.
From Wikipedia
Fourpeaked Mountain, also known as Fourpeaked Volcano, is an active stratovolcano located in the U.S. state of Alaska within Katmai National Park and Preserve. The volcano is nearly completely covered by Fourpeaked Glacier.
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Eruption history
1 recordedGlossaryDetailed timeline
- 2006VEI 2Observed2006-09-17 – 2006-09-17Fissure trending N from summit
Nearby volcanoes
External links
⚠ For reference only. Not for emergency response.