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Japón · Domo de lava

Niijima

Tipo
Domo de lava
Altitud
432 m
Última erupción
886
Niijima
Foto: っ at Japanese Wikipedia · CC BY-SA 3.0 · Wikimedia Commons
Tipo
Domo de lava
País
Japón
Región
Pacífico Noroccidental / Izu Volcanic Arc
Altitud
432 m
Coordenadas
34.397, 139.270
Última erupción
886
Contexto tectónico
Zona de subducción / Corteza oceánica (< 15 km)
Forma volcánica
Menor (silícico)
Roca principal
Riolita
Resumen geológico

The elongated island of Niijima, SSW of Oshima, is 11 km long and only 2.5 km wide. Eight low rhyolitic lava domes are clustered in two groups at the northern and southern ends of the island, separated by an area of flat-topped domes and a low isthmus of pyroclastic deposits. The Mukaiyama complex on the south and the Atchiyama lava dome on the north were formed during eruptions in the 9th century CE, the last known activity. Shikineyama and Zinaito domes form small islands immediately to the SW and W, respectively, during earlier stages of volcanism. Earthquake swarms occurred during the 20th century.

Resumen de Wikipedia

Resumen en inglés

Nii-jima (新島) is a volcanic Japanese island administered by the Tokyo Metropolitan Government. It is one of the Izu Seven Islands, group of the seven northern islands of the Izu archipelago, and is located approximately 163 kilometres (101 mi) south of Tōkyō and 36 kilometres (22 mi) south of Shimoda Shizuoka Prefecture. The island is the larger inhabited component of the village of Niijima Village, Ōshima Subprefecture of Tokyo Metropolis, which also contains the neighboring island of Shikine-jima and the smaller, uninhabited Jinai-tō. Nii-jima is also within the boundaries of the Fuji-Hakone-Izu National Park.

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Historial de erupciones

5 registradasGlosario
Resumen (VEI en el tiempo)
Haga clic en una barra para ver erupciones individuales · Usa las flechas para moverte entre barras y Enter para abrir
5950 a. C.~5722 a. C. · 1 erupciones · VEI máx. ?4355 a. C.~4127 a. C. · 1 erupciones · VEI máx. ?1393 a. C.~1165 a. C. · 1 erupciones · VEI máx. ?658~886 · 2 erupciones · VEI máx. 45950 a. C.4355 a. C.2532 a. C.937 a. C.658

Línea de tiempo detallada

  1. 886VEI 4Observado
    886-06-29 – fin desconocido
    Mukai-yama
  2. 856VEI 2Observado
    856 – 857
    Achi-yama
  3. 1250 a. C.VEI ?Estimación geológica
    1250 a. C. – fin desconocido
  4. 4350 a. C.VEI ?Estimación geológica
    4350 a. C. – fin desconocido
    Niijima-yama
  5. 5950 a. C.VEI ?Estimación geológica
    5950 a. C. – fin desconocido

Volcanes cercanos

Enlaces externos

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