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Japón · Caldera

Kita-Bayonnaise

Tipo
Caldera
Altitud
360 m (submarino)
Última erupción
Desconocido
The submarine topography of the 6-7 km Myojin Knoll caldera is seen in this SeaBeam image viewed from the SW. The white line marks the E-W track of the survey vessel. A voluminous deposit of coarse pumice from the caldera-forming eruption mantles the caldera rim and its outer flanks. A post-caldera lava dome rises 250 m above the caldera floor.
The submarine topography of the 6-7 km Myojin Knoll caldera is seen in this SeaBeam image viewed from the SW. The white line marks the E-W track of the survey vessel. A voluminous deposit of coarse pumice from the caldera-forming eruption mantles the caldera rim and its outer flanks. A post-caldera lava dome rises 250 m above the caldera floor. · Foto: Image by Fumitoshi Murakami (Geological Survey of Japan, courtesy of Richard Fiske, Smithsonian Institution).
Tipo
Caldera
País
Japón
Región
Pacífico Noroccidental / Izu Volcanic Arc
Altitud
360 m (submarino)
Coordenadas
32.100, 139.850
Última erupción
Desconocido
Contexto tectónico
Zona de subducción / Corteza oceánica (< 15 km)
Forma volcánica
Caldera
Roca principal
Riolita

Resumen geológico

Original en inglés

The large submarine Kita-Bayonnaise (North Bayonnaise) submarine caldera, also known as Myojin Knoll, lies between the Aogashima and Myojinsho (also called Beyonesu Rocks) calderas about 300 km SSE of the Izu Peninsula.

Extracto del Global Volcanism Program, Smithsonian Institution · Leer el resumen completo en el GVP →

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