Vanuatu · Estratovolcán
Gaua
- Tipo
- Estratovolcán
- Altitud
- 729 m
- Última erupción
- 2022

- Tipo
- Estratovolcán
- País
- Vanuatu
- Región
- Pacífico Suroccidental / Vanuatu Volcanic Arc
- Altitud
- 729 m
- Coordenadas
- -14.281, 167.514
- Última erupción
- 2022
- Contexto tectónico
- Zona de subducción / Corteza intermedia (15-25 km)
- Forma volcánica
- Compuesto
- Roca principal
- Andesita / Andesita basáltica
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
Resumen en inglésGaua is the largest and second most populous of the Banks Islands in Torba Province in northern Vanuatu. It covers 342 km2.
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Historial de erupciones
19 registradasGlosarioLínea de tiempo detallada
- 2022VEI 1Observado2022-05-03 – 2022-05-03Mt. Garet
- 2021VEI 1Observado2021-11-16 – 2021-11-16Mt. Garet
- 2011VEI 1Observado2011-09-17 – 2011-10-10Mt. Garat
- 2009VEI 2Observado2009-09-27 – 2010-06-19Mt. Garat
- 1982VEI 2Observado1982-04-18 – 1982-04-18Mt. Garat
- 1981VEI 1Observado1981-07-09 – 1981-07-09Mt. Garat
- 1980VEI 1Observado1980-07-02 – fin desconocidoMt. Garat
- 1977VEI 2Observado1977-04-13 – 1977-04-13Mt. Garat
- 1976VEI 2Observado1976-01-15 – fin desconocidoMt. Garat
- 1973VEI 2Observado1973-10-09 – 1974-01-21Mt. Garat (upper SE flank)
- 1971VEI 2Observado1971-05-12 – 1971-05-13Mt. Garat (upper SE flank)
- 1969VEI 2Observado1969-09-22 – fin desconocidoMt. Garat
- 1968VEI 2Observado1968-07-02 – 1968-12-01Mt. Garat (upper SE flank)
- 1967VEI 2Observado1967-07-16 – fin desconocidoMt. Garat
- 1966VEI 2Observado1966-07-02 – fin desconocidoMt. Garat
- 1965VEI 3Observado1965-09-27 – 1965-09-30Mt. Garat
- 1963VEI 2Observado1963-09-15 – 1963-11-09Mt. Garat (upper SE flank)
- 1962VEI 2Observado1962-07-16 – fin desconocidoMt. Garat
- 1875VEI ?Observado1875-06-16 – fin desconocido
Volcanes cercanos
Enlaces externos
⚠ Solo como referencia. No apto para respuesta ante emergencias.