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Nishinoshima

Caldera · Japan · 100 m

A submarine explosion from Nishinoshima breaches the surface on 9 October 1973. Steam trails behind ejected hot blocks at the margin of the plume. Submarine eruptions began on 12 April 1973 and the new island was first observed on 11 September. Lava flows began in September and three new islands were formed, which joined together during October-November 1973.
A submarine explosion from Nishinoshima breaches the surface on 9 October 1973. Steam trails behind ejected hot blocks at the margin of the plume. Submarine eruptions began on 12 April 1973 and the new island was first observed on 11 September. Lava flows began in September and three new islands were formed, which joined together during October-November 1973. · Foto: Photo courtesy of Japan Meteorological Agency, 1973. · Wikimedia Commons
Tipo
Caldera
País
Japan
Región
Northwestern Pacific Volcanic Regions / Ogasawara Volcanic Arc
Altitud
100 m
Coordenadas
27.247, 140.874
Última erupción
2023
Contexto tectónico
Subduction zone / Crustal thickness unknown
Forma volcánica
Caldera
Roca principal
Andesite / Basaltic Andesite
Resumen geológico

The small island of Nishinoshima was enlarged when several new islands coalesced during an eruption in 1973-74. Multiple eruptions that began in 2013 completely covered the previous exposed surface and continued to enlarge the island. The island is the summit of a massive submarine volcano that has prominent peaks to the S, W, and NE. The summit of the southern cone rises to within 214 m of the ocean surface 9 km SSE.

Resumen de Wikipedia

Nishinoshima es una isla volcánica ubicada a 940 km al sur-sureste de Tokio, y forma parte del arco de las islas de Los Volcanes, al sureste de Japón. Fue conocida antiguamente con el nombre de Isla Rosario.

Wikipedia · CC BY-SA · Leer artículo completo →

Historial de erupciones

Resumen (VEI en el tiempo)
Haga clic en una barra para ver erupciones individuales
1973~1978 · 2 erupciones · VEI máx. 21978~1983 · 3 erupciones · VEI máx. 01983~1988 · 3 erupciones · VEI máx. 01998~2002 · 1 erupciones · VEI máx. 02012~2017 · 2 erupciones · VEI máx. 22017~2022 · 4 erupciones · VEI máx. 219731983199820072017

Línea de tiempo detallada

  1. 2022VEI 2Observado
    2022-10-01 – 2023-10-13
    Central cone of 2013 island
  2. 2021VEI 2Observado
    2021-08-14 – 2021-08-15
    Central cone of 2013 island
  3. 2019VEI 1Observado
    2019-12-05 – 2020-08-27
    Central cone of 2013 island
  4. 2018VEI 1Observado
    2018-07-12 – 2018-07-21
    Central cone of 2013 island
  5. 2017VEI 2Observado
    2017-04-18 – 2017-08-17
    Central cone of 2013 island
  6. 2013VEI 2Observado
    2013-11-20 – 2015-11-17
    Vent SSE of existing Nishinoshima
  7. 2001VEI 0Estimación geológica
    2001-01-16 – En curso
  8. 1986VEI 0Estimación geológica
    1986-07-02 – 1990-07-02
  9. 1985VEI 0Estimación geológica
    1985-12-02 – 1985-12-02
  10. 1983VEI 0Estimación geológica
    1983-07-02 – 1984-07-02
  11. 1982VEI 0Estimación geológica
    1982-04-16 – 1982-04-16
  12. 1980VEI 0Estimación geológica
    1980-07-07 – 1981-07-02
    South, east, and west sides
  13. 1978VEI 0Estimación geológica
    1978-11-16 – 1979-07-02
    6.5 km NW of Nishino-shima
  14. 1975VEI 0Estimación geológica
    1975-07-02 – 1977-07-02
  15. 1973VEI 2Observado
    1973-04-12 – 1974-05-05
    Vent SE of existing Nishinoshima

Enlaces externos

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