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Yantarni Volcano

Yantarni

Estratovolcán · United States · 1345 m

Yantarni is located on the Alaska Peninsula, with this view from the east showing the lava dome at the summit. On either side of the dome are remnants of a large crater that opens to the NE, which formed during flank collapse about 2,000-3,500 years ago.
Yantarni is located on the Alaska Peninsula, with this view from the east showing the lava dome at the summit. On either side of the dome are remnants of a large crater that opens to the NE, which formed during flank collapse about 2,000-3,500 years ago. · Foto: Photo by Tom Miller, 1985 (Alaska Volcano Observatory, U.S. Geological Survey). · Wikimedia Commons
Tipo
Estratovolcán
País
United States
Región
América del Norte / Alaska Peninsula Volcanic Arc
Altitud
1345 m
Coordenadas
57.019, -157.185
Última erupción
-800
Contexto tectónico
Subduction zone / Continental crust (> 25 km)
Forma volcánica
Composite
Roca principal
Andesite / Basaltic Andesite
Resumen geológico

Yantarni is a small andesitic stratovolcano located between Aniakchak caldera and Chiginadak volcanoes that was not discovered until 1979. A large breached crater on the NE side, formed by collapse of the summit about 2000-3500 years ago, contains a lava dome that marks the summit. This eruption, which resembled that of Mount St. Helens in 1980, began with a debris avalanche produced by the edifice collapse that was accompanied by a possible lateral blast and followed by the emplacement of 1 km3 of pyroclastic flows related to growth of the summit lava dome.

Historial de erupciones

Resumen (VEI en el tiempo)
Haga clic en una barra para ver erupciones individuales
800 BCE~800 BCE · 1 erupciones · VEI máx. 5800 BCE800 BCE799 BCE799 BCE799 BCE

Línea de tiempo detallada

  1. 800 a. C. (±500 años)VEI 5Estimación geológica
    BCE 800 – En curso

Enlaces externos

⚠ Solo como referencia. No apto para respuesta ante emergencias.