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Nakanoshima

Estratovolcán · Japan · 979 m

Nakanoshima island is seen here from a beach on Kuchinoshima to the NNE. The active cone of Ontake to the right has a summit crater that fills with water during the rainy season. The 9 x 5 km island is surrounded by coral reefs, and a flat plateau separates it from an older dissected volcano to the south. Minor activity has been reported in historical time.
Nakanoshima island is seen here from a beach on Kuchinoshima to the NNE. The active cone of Ontake to the right has a summit crater that fills with water during the rainy season. The 9 x 5 km island is surrounded by coral reefs, and a flat plateau separates it from an older dissected volcano to the south. Minor activity has been reported in historical time. · Foto: Copyrighted photo by Shun Nakano, 2005 (Japanese Quaternary Volcanoes database, RIODB, http://riodb02.ibase.aist.go.jp/strata/VOL_JP/EN/index.htm and Geol Surv Japan, AIST, http://www.gsj.jp/). · Wikimedia Commons
Tipo
Estratovolcán
País
Japan
Región
Western Pacific Volcanic Regions / Ryukyu Volcanic Arc
Altitud
979 m
Coordenadas
29.859, 129.857
Última erupción
1914
Contexto tectónico
Subduction zone / Oceanic crust (< 15 km)
Forma volcánica
Composite
Roca principal
Andesite / Basaltic Andesite
Resumen geológico

The 9 x 5 km island of Nakanoshima is surrounded by coral reefs. A flat plateau separates the older dissected Sakiwaridake volcano on the south from the active andesitic cone of Ontake, which forms the northern half of the island. Ontake contains a summit crater that is filled with water during the rainy season. Sulfur deposits were mined at a SE-flank solfatara until 1944. Only very minor activity has been reported in historical time. A small mud eruption took place in 1914 at the summit crater, and "smoking" increased in 1949.

Resumen de Wikipedia

Nakanoshima es una isla volcánica situada en las islas Tokara, subgrupo parte de las islas Ryukyu, al sur de Japón. Es la isla más grande y poblada de las islas en el pueblo de Toshima. La isla tenía 167 habitantes en 2004.

Wikipedia · CC BY-SA · Leer artículo completo →

Historial de erupciones

Resumen (VEI en el tiempo)
Haga clic en una barra para ver erupciones individuales
1914~1918 · 1 erupciones · VEI máx. 11946~1949 · 1 erupciones · VEI máx. 119141921193219391946

Línea de tiempo detallada

  1. 1949VEI 1Estimación geológica
    1949-10 – En curso
    On-take
  2. 1914VEI 1Observado
    1914-01 – En curso
    On-take

Enlaces externos

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