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Uratman

Estratovolcán · Russia · 678 m

A large post-caldera cone (upper left) was constructed in the SE part of the Uratman caldera, the northernmost volcano on Simushir Island. The caldera is partially filled by Brouton Bay, shown here. Two cones and a lava dome are on the northern flank of the larger cone in this view from the NE caldera rim.
A large post-caldera cone (upper left) was constructed in the SE part of the Uratman caldera, the northernmost volcano on Simushir Island. The caldera is partially filled by Brouton Bay, shown here. Two cones and a lava dome are on the northern flank of the larger cone in this view from the NE caldera rim. · Foto: Photo by Yoshihiro Ishizuka, 2000 (Hokkaido University). · Wikimedia Commons
Tipo
Estratovolcán
País
Russia
Región
Pacífico Noroccidental / Kuril Volcanic Arc
Altitud
678 m
Coordenadas
47.120, 152.250
Última erupción
Desconocido
Contexto tectónico
Subduction zone / Oceanic crust (< 15 km)
Forma volcánica
Composite
Roca principal
Andesite / Basaltic Andesite
Resumen geológico

The northernmost volcano on Simushir Island, Uratman consists of a 7.5-km-wide Pleistocene caldera with walls that rise 450 m above a 250-m-deep caldera bay. A narrow gap in the northern rim provides ocean access into Brouton Bay, which fills the NW half of the caldera. The andesitic central cone grew during the Holocene in the SE part of the caldera. Two cinder cones are located along the N flank of Uratman, and a lava dome was formed on its NW flank along Brouton Bay. No recorded eruptions are known.

Historial de erupciones

Línea de tiempo detallada

No hay registros de erupciones disponibles.

Enlaces externos

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