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Suwanosejima

Estratovolcán · Japan · 796 m

A plume rises above Ontake, the summit crater of Suwanosejima. The 8-km-long island consists of a stratovolcano with two historically active summit craters. The dipping scarp at the top of the image opens towards the sea on the E flank and formed by edifice collapse. This is one of Japan's most frequently active volcanoes and has been in a state of intermittent Strombolian activity since 1949.
A plume rises above Ontake, the summit crater of Suwanosejima. The 8-km-long island consists of a stratovolcano with two historically active summit craters. The dipping scarp at the top of the image opens towards the sea on the E flank and formed by edifice collapse. This is one of Japan's most frequently active volcanoes and has been in a state of intermittent Strombolian activity since 1949. · Foto: Photo by Yukio Hayakawa, 1998 (Gunma University). · Wikimedia Commons
Tipo
Estratovolcán
País
Japan
Región
Western Pacific Volcanic Regions / Ryukyu Volcanic Arc
Altitud
796 m
Coordenadas
29.638, 129.714
Última erupción
2026
Contexto tectónico
Subduction zone / Oceanic crust (< 15 km)
Forma volcánica
Composite
Roca principal
Andesite / Basaltic Andesite
Resumen geológico

The 8-km-long island of Suwanosejima in the northern Ryukyu Islands consists of an andesitic stratovolcano with two active summit craters. The summit is truncated by a large breached crater extending to the sea on the E flank that was formed by edifice collapse. One of Japan's most frequently active volcanoes, it was in a state of intermittent Strombolian activity from Otake, the NE summit crater, between 1949 and 1996, after which periods of inactivity lengthened. The largest recorded eruption took place in 1813-14, when thick scoria deposits covered residential areas, and the SW crater produced two lava flows that reached the western coast. At the end of the eruption the summit of Otake collapsed, forming a large debris avalanche and creating an open collapse scarp extending to the eastern coast. The island remained uninhabited for about 70 years after the 1813-1814 eruption. Lava flows reached the eastern coast of the island in 1884. Only about 50 people live on the island.

Resumen de Wikipedia

La isla de Suwanose o Suwanosejima (諏訪之瀬島?) es una isla volcánica de Japón que forma parte de las islas Tokara. Tiene una elevación de 799 m sobre el nivel del mar, y una longitud de 8 km. Es uno de los volcanes más activos de Japón y del mundo. Administrativamente pertenece al distrito de Kagoshima y a la villa de Toshima.

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Historial de erupciones

Resumen (VEI en el tiempo)
Haga clic en una barra para ver erupciones individuales
1600~1640 · 1 erupciones · VEI máx. 41802~1842 · 1 erupciones · VEI máx. 41842~1883 · 1 erupciones · VEI máx. 41883~1923 · 6 erupciones · VEI máx. 41923~1964 · 8 erupciones · VEI máx. 21964~2004 · 10 erupciones · VEI máx. 316001681180218831964

Línea de tiempo detallada

  1. 2004VEI 2Observado
    2004-10-23 – 2026-03-16
    O-take
  2. 2000VEI 2Observado
    2000-02-24 – 2000-02-24
    O-take
  3. 2000VEI 3Observado
    2000-12-19 – 2004-07-05
    O-take (Upper NE flank)
  4. 1999VEI 1Observado
    1999-01-05 – 1999-02-24
    O-take
  5. 1999VEI 1Observado
    1999-06-15 – 1999-06-30
    O-take
  6. 1996VEI 1Observado
    1996-12-26 – 1997-04-17
    O-take
  7. 1990VEI 2Observado
    1990-04-16 – 1996-07-14
    O-take
  8. 1988VEI 2Observado
    1988-01-16 – 1989-12-16
    O-take
  9. 1985VEI 2Observado
    1985-09-16 – 1987-06-16
    O-take
  10. 1984VEI 2Observado
    1984-10-16 – 1984-10-16
    O-take
  11. 1960VEI 0Observado
    1960-07-02 – En curso
    Submarine E flank (Suwanose-jima Oki)
  12. 1956VEI 2Observado
    1956-11-16 – 1984-05-16
    O-take
  13. 1954VEI 0Observado
    1954-07-02 – En curso
    Submarine E flank (Suwanose-jima Oki)
  14. 1949VEI 2Observado
    1949-10 – 1954-07-02
    O-take
  15. 1940VEI 2Observado
    1940-11-29 – En curso
    O-take
  16. 1938VEI 2Observado
    1938-03-11 – 1938-03-11
    O-take
  17. 1934VEI 2Estimación geológica
    1934-01-11 – En curso
    O-take
  18. 1925VEI 2Observado
    1925-05-13 – En curso
    O-take
  19. 1921VEI 2Observado
    1921-12-08 – 1922-01-26
    O-take
  20. 1915VEI 2Estimación geológica
    1915-07 – 1915-09
    O-take
  21. 1914VEI ?Estimación geológica
    1914-03-21 – En curso
    O-take
  22. 1889VEI 4Observado
    1889-10-02 – 1889-10-13
    O-take
  23. 1885VEI 2Observado
    1885-01 – 1885-05
    O-take
  24. 1884VEI 1Observado
    1884 – En curso
    Northeastern summit crater (O-take)
  25. 1877VEI 4Observado
    1877 – En curso
  26. 1813VEI 4Observado
    1813 – 1814
    SW ridge fissure and O-take
  27. 1600VEI 4Estimación geológica
    1600 – En curso

Enlaces externos

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