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Kikai

Caldera · Japan · 704 m

Kikai is a mostly submerged 19-km-wide caldera S of Kyushu that was the source of one of the world's largest Holocene eruptions about 6,300 years ago. Pyroclastic flows traveled across the sea for a total distance of 100 km and devastated southern and central Kyushu. This view from near the summit of the post-caldera Iwodake cone shows the W rim of Kikai caldera forming the peninsula (upper left) behind the Inamuradake scoria cone.
Kikai is a mostly submerged 19-km-wide caldera S of Kyushu that was the source of one of the world's largest Holocene eruptions about 6,300 years ago. Pyroclastic flows traveled across the sea for a total distance of 100 km and devastated southern and central Kyushu. This view from near the summit of the post-caldera Iwodake cone shows the W rim of Kikai caldera forming the peninsula (upper left) behind the Inamuradake scoria cone. · Foto: Photo by Yasuo Miyabuchi, 1996 (Forestry and Forest Products Research Institute, Kyushu). · Wikimedia Commons
Tipo
Caldera
País
Japan
Región
Western Pacific Volcanic Regions / Ryukyu Volcanic Arc
Altitud
704 m
Coordenadas
30.793, 130.305
Última erupción
2025
Contexto tectónico
Subduction zone / Oceanic crust (< 15 km)
Forma volcánica
Caldera
Roca principal
Rhyolite
Resumen geológico

Multiple eruption centers have exhibited recent activity at Kikai, a mostly submerged, 19-km-wide caldera near the northern end of the Ryukyu Islands south of Kyushu. It was the source of one of the world's largest Holocene eruptions about 6,300 years ago when rhyolitic pyroclastic flows traveled across the sea for a total distance of 100 km to southern Kyushu, and ashfall reached the northern Japanese island of Hokkaido. The eruption devastated southern and central Kyushu, which remained uninhabited for several centuries. Post-caldera eruptions formed Iodake (or Iwo-dake) lava dome and Inamuradake scoria cone, as well as submarine lava domes. Recorded eruptions have occurred at or near Satsuma-Iojima (also known as Tokara-Iojima), a small 3 x 6 km island forming part of the NW caldera rim. Showa-Iojima lava dome (also known as Iojima-Shinto), a small island 2 km E of Satsuma-Iojima, was formed during submarine eruptions in 1934 and 1935. Mild-to-moderate explosive eruptions have occurred during the past few decades from Iodake, a rhyolitic lava dome at the eastern end of Satsuma-Iojima.

Resumen de Wikipedia

Kikai o Caldera Kikai es una caldera volcánica masiva, en su mayoría sumergida, de hasta 19 kilómetros de diámetro en las islas Ōsumi de la prefectura de Kagoshima, Japón. Son los restos de la antigua erupción volcánica de un gigantesco volcán.

Wikipedia · CC BY-SA · Leer artículo completo →

Historial de erupciones

Resumen (VEI en el tiempo)
Haga clic en una barra para ver erupciones individuales
4350 BCE~4137 BCE · 1 erupciones · VEI máx. 73287 BCE~3075 BCE · 1 erupciones · VEI máx. ?2650 BCE~2437 BCE · 1 erupciones · VEI máx. ?2012 BCE~1800 BCE · 1 erupciones · VEI máx. ?1162 BCE~950 BCE · 1 erupciones · VEI máx. 2312 BCE~100 BCE · 1 erupciones · VEI máx. ?325~538 · 1 erupciones · VEI máx. 3750~963 · 2 erupciones · VEI máx. 3963~1175 · 2 erupciones · VEI máx. ?1175~1388 · 1 erupciones · VEI máx. ?1388~1600 · 1 erupciones · VEI máx. ?1813~2025 · 17 erupciones · VEI máx. 24350 BCE2862 BCE1162 BCE3251813

Línea de tiempo detallada

  1. 2025VEI 1Observado
    2025-12-29 – 2025-12-29
    Iodake Crater
  2. 2024VEI 1Observado
    2024-09-01 – 2024-09-03
    Satsuma Iwo-jima (Iodake Crater)
  3. 2023VEI ?Observado
    2023-03-27 – 2023-07-31
  4. 2020VEI 1Observado
    2020-04-29 – 2020-04-29
  5. 2020VEI 1Observado
    2020-10-06 – 2020-10-06
  6. 2019VEI 2Observado
    2019-11-02 – 2019-11-02
  7. 2013VEI 1Observado
    2013-06-04 – 2013-06-04
    Iodake
  8. 2004VEI 2Observado
    2004-03-05 – 2004-10-16
    Iwo-dake
  9. 2003VEI 2Observado
    2003-02-16 – 2003-10-16
    Iwo-dake
  10. 2002VEI 2Observado
    2002-05-11 – 2002-07-16
    Iwo-dake
  11. 2000VEI 2Observado
    2000-01-16 – 2000-03-16
    Iwo-dake
  12. 2000VEI 1Observado
    2000-10-16 – 2001-12-16
    Iwo-dake
  13. 1998VEI 2Observado
    1998-04-25 – 1999-08-16
    Iwo-dake
  14. 1997VEI 1Observado
    1997-07-02 – En curso
    Iwo-dake
  15. 1988VEI 1Observado
    1988-01-18 – 1988-01-18
    Iwo-dake
  16. 1934VEI 2Observado
    1934-09-19 – 1935-08
    2 km east of Tokara-Iwo-Jima
  17. 1914VEI ?Estimación geológica
    1914-02-13 – En curso
    Tokara-Iwo-jima
  18. 1430 (±75 años)VEI ?Estimación geológica
    1430 – En curso
    Iwo-dake
  19. 1340 (±30 años)VEI ?Estimación geológica
    1340 – En curso
    Iwo-dake
  20. 1030 (±40 años)VEI ?Estimación geológica
    1030 – En curso
    Iwo-dake
  21. 1010 (±40 años)VEI ?Estimación geológica
    1010 – En curso
    Iwo-dake
  22. 830 (±40 años)VEI ?Estimación geológica
    830 – En curso
    Iwo-dake
  23. 750VEI 3Estimación geológica
    750 – En curso
    Iwo-dake
  24. 390 (±100 años)VEI 3Estimación geológica
    390 – En curso
    Iwo-dake
  25. 280 a. C. (±75 años)VEI ?Estimación geológica
    BCE 280 – En curso
    Iwo-dake
  26. 1090 a. C. (±100 años)VEI 2Estimación geológica
    BCE 1090 – En curso
    Inamura-dake
  27. 1830 a. C. (±75 años)VEI ?Estimación geológica
    BCE 1830 – En curso
    Inamura-dake
  28. 2450 a. C. (±840 años)VEI ?Estimación geológica
    BCE 2450 – En curso
    Old Iwo-dake
  29. 3250 a. C. (±75 años)VEI ?Estimación geológica
    BCE 3250 – En curso
    Old Iwo-dake
  30. 4350 a. C.VEI 7Estimación geológica
    BCE 4350 – En curso
    Kikai caldera

Enlaces externos

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