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Gaua

Estratovolcán · Vanuatu · 729 m

A plume rises from the active crater of Mount Garat in this view across Lake Letas, within the 6 x 9 km summit caldera of Gaua volcano (also known as Santa Maria). Three craters are located at the top of Mount Garat. The onset of eruptive activity from a vent high on the SE flank in 1962 ended a long period of dormancy.
A plume rises from the active crater of Mount Garat in this view across Lake Letas, within the 6 x 9 km summit caldera of Gaua volcano (also known as Santa Maria). Three craters are located at the top of Mount Garat. The onset of eruptive activity from a vent high on the SE flank in 1962 ended a long period of dormancy. · Foto: Photo by John Seach, 1999. · Wikimedia Commons
Tipo
Estratovolcán
País
Vanuatu
Región
Southwestern Pacific Volcanic Regions / Vanuatu Volcanic Arc
Altitud
729 m
Coordenadas
-14.281, 167.514
Última erupción
2022
Contexto tectónico
Subduction zone / Intermediate crust (15-25 km)
Forma volcánica
Composite
Roca principal
Andesite / Basaltic Andesite
Resumen geológico

The roughly 20-km-diameter Gaua Island, also known as Santa Maria, consists of a basaltic-to-andesitic stratovolcano with an 6 x 9 km summit caldera. Small vents near the caldera rim fed Pleistocene lava flows that reached the coast on several sides of the island; littoral cones were formed where these lava flows reached the ocean. Quiet collapse that formed the roughly 700-m-deep caldera was followed by extensive ash eruptions. The active Mount Garet (or Garat) cone in the SW part of the caldera has three pit craters across the summit area. Construction of Garet and other small cinder cones has left a crescent-shaped lake. Eruptions have been frequent since the onset of activity from a vent high on the SE flank in 1962.

Resumen de Wikipedia

Gaua es la mayor de las Islas Banks en la provincia de Torba, en el norte de Vanuatu. Tiene una superficie de 342 km².

Wikipedia · CC BY-SA · Leer artículo completo →

Historial de erupciones

Resumen (VEI en el tiempo)
Haga clic en una barra para ver erupciones individuales
1875~1890 · 1 erupciones · VEI máx. ?1949~1963 · 2 erupciones · VEI máx. 21963~1978 · 9 erupciones · VEI máx. 31978~1993 · 3 erupciones · VEI máx. 22007~2022 · 4 erupciones · VEI máx. 218751904194919782007

Línea de tiempo detallada

  1. 2022VEI 1Observado
    2022-05-03 – 2022-05-03
    Mt. Garet
  2. 2021VEI 1Observado
    2021-11-16 – 2021-11-16
    Mt. Garet
  3. 2011VEI 1Observado
    2011-09-17 – 2011-10-10
    Mt. Garat
  4. 2009VEI 2Observado
    2009-09-27 – 2010-06-19
    Mt. Garat
  5. 1982VEI 2Observado
    1982-04-18 – 1982-04-18
    Mt. Garat
  6. 1981VEI 1Observado
    1981-07-09 – 1981-07-09
    Mt. Garat
  7. 1980VEI 1Observado
    1980-07-02 – En curso
    Mt. Garat
  8. 1977VEI 2Observado
    1977-04-13 – 1977-04-13
    Mt. Garat
  9. 1976VEI 2Observado
    1976-01-15 – En curso
    Mt. Garat
  10. 1973VEI 2Observado
    1973-10-09 – 1974-01-21
    Mt. Garat (upper SE flank)
  11. 1971VEI 2Observado
    1971-05-12 – 1971-05-13
    Mt. Garat (upper SE flank)
  12. 1969VEI 2Observado
    1969-09-22 – En curso
    Mt. Garat
  13. 1968VEI 2Observado
    1968-07-02 – 1968-12-01
    Mt. Garat (upper SE flank)
  14. 1967VEI 2Observado
    1967-07-16 – En curso
    Mt. Garat
  15. 1966VEI 2Observado
    1966-07-02 – En curso
    Mt. Garat
  16. 1965VEI 3Observado
    1965-09-27 – 1965-09-30
    Mt. Garat
  17. 1963VEI 2Observado
    1963-09-15 – 1963-11-09
    Mt. Garat (upper SE flank)
  18. 1962VEI 2Observado
    1962-07-16 – En curso
    Mt. Garat
  19. 1875VEI ?Observado
    1875-06 – En curso

Enlaces externos

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