Vanuatu · Volcán en escudo
Ambrym
- Tipo
- Volcán en escudo
- Altitud
- 1334 m
- Última erupción
- 2024
- Tipo
- Volcán en escudo
- País
- Vanuatu
- Región
- Pacífico Suroccidental / Vanuatu Volcanic Arc
- Altitud
- 1334 m
- Coordenadas
- -16.250, 168.120
- Última erupción
- 2024
- Contexto tectónico
- Zona de subducción / Corteza intermedia (15-25 km)
- Forma volcánica
- Escudo
- Roca principal
- Basalto / Picrobasalto
Resumen geológico
Ambrym is a large basaltic volcano with a 12-km-wide caldera formed during a major Plinian eruption with dacitic pyroclastic flows about 1,900 years ago. A thick, almost exclusively pyroclastic sequence, initially dacitic then basaltic, overlies lava flows of a pre-caldera shield volcano. Post-caldera eruptions, primarily from Marum and Benbow cones, have partially filled the caldera floor and produced lava flows that ponded on the floor or overflowed through gaps in the caldera rim. Post-caldera eruptions have also formed a series of scoria cones and maars along a fissure system oriented ENE-WSW. Eruptions have been frequently reported since 1774, though mostly limited to extra-caldera eruptions that would have affected local populations. Since 1950 observations of eruptive activity from cones within the caldera or from flank vents have occurred almost yearly.
Resumen de Wikipedia
Resumen en inglésAmbrym is a volcanic island in Malampa Province in the archipelago of Vanuatu. It is located near the center of the archipelago of Vanuatu, and also hosts one of the most active volcanoes in the world, which includes lava lakes in two craters near the summit. It is currently the least populous island in the country.
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Historial de erupciones
60 registradasGlosarioLínea de tiempo detallada
- 2024VEI 0Observado2024-01-13 – 2024-01-16
- 2024VEI 0Observado2024-10-31 – 2024-11-02
- 2022VEI 1Observado2022-01-25 – 2022-02-02Benbow Crater
- 2008VEI 2Observado2008-05-23 – 2018-12-17Benbow and Marum
- 2006VEI 2Observado2006-11-08 – 2007-12-27Marum (Mbwelesu)
- 1996VEI 1Observado1996-06-16 – 2005-08-16Benbow, Marum, Niri Mbelesu, Mbwelesu
- 1994VEI 1Observado1994-12-16 – fin desconocidoBenbow and Marum
- 1990VEI 2Observado1990-09-16 – 1991-07-16Mbwelesu, Niri Mbwelesu, Niri Taten
- 1989VEI 2Observado1989-04-24 – 1989-12-23Marum, Benbow, Niri Mbwelesu Taten
- 1988VEI 3Observado1988-02-12 – 1988-08-23Benbow, Mbwelesu, Marum, Niri Taten
- 1986VEI 2Observado1986-11-13 – 1986-11-19New cone 3 km east of Marum
- 1984VEI 2Observado1984-07-02 – 1986-03-08
- 1983VEI 2Observado1983-07-02 – fin desconocidoMarum
- 1981VEI 2Observado1981-02-20 – 1981-09-30Benbow, Marum
- 1980VEI 3Observado1980-05-16 – 1980-08-18Marum
- 1979VEI 2Observado1979-01-26 – 1979-02-18Benbow
- 1979VEI 2Observado1979-06-06 – 1979-09-16Benbow, Marum
- 1977VEI 2Observado1977-01-20 – 1977-01-28
- 1977VEI 2Observado1977-08-16 – 1977-09-30
- 1973VEI 3Observado1973-04-15 – 1976-10-14Benbow, Mbuelesu, Marum
- 1972VEI 3Observado1972-04-15 – 1972-08-15Benbow, Marum
- 1971VEI 2Observado1971-02-03 – 1971-11-05Marum, Benbow
- 1967VEI 2Observado1967-07-16 – 1970-08-29Marum, Benbow, Mbuelesu
- 1964VEI 2Observado1964-02-16 – 1966-09-16Marum, Benbow
- 1963VEI 2Observado1963-08-30 – 1963-09-23Benbow, Marum
- 1961VEI 3Observado1961-08-15 – 1963-04-03Benbow, Marum, south of Marum
- 1960VEI 1Observado1960-09-17 – fin desconocidoMbuelesu, Benbow, near Marum
- 1959VEI 2Observado1959-04-16 – fin desconocidoMarum
- 1958VEI 2Observado1958-11-18 – fin desconocidoBenbow and Marum
- 1957VEI 1Observado1957-08-26 – 1957-10-16Benbow, Marum
- 1955VEI 2Observado1955-07-02 – fin desconocidoBenbow
- 1954VEI 2Observado1954-07-02 – fin desconocidoBenbow
- 1953VEI 2Observado1953-05-16 – 1953-10-13Benbow, Mbuelesu, S flank of Benbow
- 1952VEI 2Observado1952-08-10 – 1952-12-26Benbow
- 1950VEI 4Observado1950-12-06 – 1951-11-25Benbow
- 1942VEI 2Observado1942-06-06 – fin desconocidoNW flank of Benbow
- 1938VEI 2Observado1938-07-02 – fin desconocidoBenbow, Marum ?
- 1937VEI 2Observado1937-03-27 – 1937-04-16Benbow and west flank
- 1935VEI 2Observado1935-09-16 – 1936-01-16Benbow
- 1929VEI 2Observado1929-06-28 – 1929-07-01Benbow, west flank, Marum
- 1927VEI ?Observado1927-01-27 – 1927-01-27
- 1915VEI 2Observado1915-10-20 – fin desconocidoMarum, crater at SE point
- 1913VEI 3Observado1913-10-14 – 1914-07-02Benbow, west flank, Marum
- 1912VEI ?Observado1912-07-02 – fin desconocidoMarum ?, west flank ?
- 1910VEI 0Observado1910-07-02 – fin desconocidoBase of Marum
- 1909VEI 2Observado1909-07-28 – fin desconocido
- 1908VEI 2Observado1908-07-02 – fin desconocido
- 1898VEI 1Observado1898-03-26 – fin desconocido
- 1894VEI 3Observado1894-10-15 – 1895-02-10Benbow and west flank
- 1888VEI 2Observado1888-02-24 – 1888-04-16SE flank (6 km from SE Point), Marum
- 1886VEI 2Observado1886-07-16 – fin desconocido
- 1884VEI 2Observado1884-07-02 – fin desconocidoMarum and/or Benbow
- 1883VEI 2Observado1883-07-02 – fin desconocidoMarum
- 1875VEI ?Observado1875-05-03 – fin desconocido
- 1871VEI 2Observado1871-07-02 – fin desconocido
- 1870VEI ?Método no indicado1870-07-02 – fin desconocido
- 1863VEI 2Observado1863-07-02 – 1864-07-02
- 1820VEI ?Observado1820-07-02 – fin desconocidoWest flank
- 1774VEI 2Observado1774-07-02 – fin desconocido
- 50 (±100 años)VEI 6Estimación geológica50 – fin desconocido
Volcanes cercanos
Enlaces externos
⚠ Solo como referencia. No apto para respuesta ante emergencias.