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Fourpeaked Mountain

Fourpeaked

Stratovulcano · United States · 2105 m

Glaciated Fourpeaked volcano in NE Katmai National Park is seen here from the south with the Swikshak River in the foreground. Holocene eruptions at Fourpeaked had not been confirmed prior to its first recorded eruption in September 2006.
Glaciated Fourpeaked volcano in NE Katmai National Park is seen here from the south with the Swikshak River in the foreground. Holocene eruptions at Fourpeaked had not been confirmed prior to its first recorded eruption in September 2006. · Foto: Photo by Jennifer Adleman, 2006 (U S Geological Survey, Alaska Volcano Observatory). · Wikimedia Commons
Tipo
Stratovulcano
Paese
United States
Regione
North America Volcanic Regions / Alaska Peninsula Volcanic Arc
Altitudine
2105 m
Coordinate
58.770, -153.672
Ultima eruzione
2006
Contesto tettonico
Subduction zone / Continental crust (> 25 km)
Forma vulcanica
Composite
Roccia principale
Andesite / Basaltic Andesite
Sintesi geologica

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.

Sintesi da Wikipedia

Riassunto in inglese

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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Storia delle eruzioni

Riepilogo (VEI nel tempo)
Fai clic su una barra per vedere le singole eruzioni
2006~2006 · 1 eruzioni · VEI max. 220062006200720072007

Cronologia dettagliata

  1. 2006VEI 2Osservata
    2006-09-17 – 2006-09-17
    Fissure trending N from summit

Link esterni

⚠ Solo a scopo informativo. Non adatto a situazioni di emergenza.