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Kuju Mountains

Kujusan

Estratovolcán · Japan · 1791 m

The Kuju volcano group in northern Kyushu consists of more than ten cones and lava domes NE of Aso caldera. This view from the E shows Mimatayama (right) and Nakadake (left) lava domes, which formed about 10,000-12,000 years ago. Gas-and-steam plumes rising from fumaroles are seen here in 1994 on the flank of Hosshozan (center), the site of small phreatic explosions in November 1995. Many hot springs and hydrothermal fields are located at the Kuju complex.
The Kuju volcano group in northern Kyushu consists of more than ten cones and lava domes NE of Aso caldera. This view from the E shows Mimatayama (right) and Nakadake (left) lava domes, which formed about 10,000-12,000 years ago. Gas-and-steam plumes rising from fumaroles are seen here in 1994 on the flank of Hosshozan (center), the site of small phreatic explosions in November 1995. Many hot springs and hydrothermal fields are located at the Kuju complex. · Foto: Photo by Yasuo Miyabuchi, 1994 (Forestry and Forest Products Research Institute, Kyushu). · Wikimedia Commons
Tipo
Estratovolcán
País
Japan
Región
Western Pacific Volcanic Regions / Nankai Volcanic Arc
Altitud
1791 m
Coordenadas
33.086, 131.249
Última erupción
1996
Contexto tectónico
Subduction zone / Continental crust (> 25 km)
Forma volcánica
Composite
Roca principal
Andesite / Basaltic Andesite
Resumen geológico

Kujusan is a complex of stratovolcanoes and lava domes lying NE of Aso caldera in north-central Kyushu. The group consists of 16 andesitic lava domes, five andesitic stratovolcanoes, and one basaltic cone. Activity dates back about 150,000 years. Six major andesitic-to-dacitic tephra deposits, many associated with the growth of lava domes, have been recorded during the Holocene. Eruptive activity has migrated systematically eastward during the past 5000 years. The latest magmatic activity occurred about 1600 years ago, when Kurodake lava dome at the E end of the complex was formed. The first reports of historical eruptions were in the 17th and 18th centuries, when phreatic or hydrothermal activity occurred. There are also many hot springs and hydrothermal fields. A fumarole on Hosho lava dome was the site of a sulfur mine for at least 500 years. Two geothermal power plants are in operation at Kuju.

Resumen de Wikipedia

Resumen en inglés

Mount Kujū , located on the border of Kokonoe and Taketa in Ōita Prefecture, Japan, is a stratovolcano in Kyushu Island, Japan, with a summit elevation of 1,791 metres (5,876 ft). It is one of the 100 Famous Japanese Mountains. It is part of the Aso-Kujū National Park.

Wikipedia · CC BY-SA · Leer artículo completo →

Historial de erupciones

Resumen (VEI en el tiempo)
Haga clic en una barra para ver erupciones individuales
9160 BCE~8788 BCE · 1 erupciones · VEI máx. 47301 BCE~6929 BCE · 1 erupciones · VEI máx. ?4698 BCE~4326 BCE · 1 erupciones · VEI máx. ?3954 BCE~3582 BCE · 1 erupciones · VEI máx. 43211 BCE~2839 BCE · 1 erupciones · VEI máx. ?2467 BCE~2095 BCE · 1 erupciones · VEI máx. 41723 BCE~1351 BCE · 1 erupciones · VEI máx. ?1351 BCE~980 BCE · 1 erupciones · VEI máx. 4236 BCE~136 · 1 erupciones · VEI máx. 4136~508 · 1 erupciones · VEI máx. 31623~1995 · 4 erupciones · VEI máx. 29160 BCE6557 BCE3582 BCE980 BCE1623

Línea de tiempo detallada

  1. 1995VEI 1Observado
    1995-10-11 – 1996-03-24
    Hosho lava dome (east flank)
  2. 1738VEI 2Estimación geológica
    1738-08-13 – En curso
  3. 1675VEI 2Observado
    1675-06 – En curso
  4. 1662VEI 2Observado
    1662-01-26 – En curso
  5. 370 (±40 años)VEI 3Estimación geológica
    370 – En curso
    Kuro-dake
  6. 100 a. C. (±300 años)VEI 4Estimación geológica
    BCE 100 – En curso
    Komekubo crater
  7. 990 a. C. (±940 años)VEI 4Estimación geológica
    BCE 990 – En curso
    Komekubo crater
  8. 1720 a. C. (±300 años)VEI ?Estimación geológica
    BCE 1720 – En curso
    Taisen-Minami
  9. 2440 a. C. (±300 años)VEI 4Estimación geológica
    BCE 2440 – En curso
    Danbaru
  10. 3110 a. C. (±500 años)VEI ?Estimación geológica
    BCE 3110 – En curso
    Iwaigo-dake, Ogigahana, Hizengajo
  11. 3780 a. C. (±500 años)VEI 4Estimación geológica
    BCE 3780 – En curso
    Taisen-Hokubu lava dome
  12. 4490 a. C. (±500 años)VEI ?Estimación geológica
    BCE 4490 – En curso
    Tachi-san, Gakurokuji
  13. 7180 a. C. (±2640 años)VEI ?Estimación geológica
    BCE 7180 – En curso
    Sensui-zan
  14. 9160 a. C. (±1190 años)VEI 4Estimación geológica
    BCE 9160 – En curso

Enlaces externos

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