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Islas Matthew y Hunter

Matthew Island

Estratovolcán · France - claimed by Vanuatu · 177 m

Matthew Island is composed of two cones separated by a narrow isthmus. Only the triangular eastern portion of the small, 0.6 x 1.2 km wide island existed prior to the 1940s, after which eruptions began to build the larger western segment (part of which is seen in the photo). The western cone consists primarily of lava flows and contains a crater that is breached to the NW.
Matthew Island is composed of two cones separated by a narrow isthmus. Only the triangular eastern portion of the small, 0.6 x 1.2 km wide island existed prior to the 1940s, after which eruptions began to build the larger western segment (part of which is seen in the photo). The western cone consists primarily of lava flows and contains a crater that is breached to the NW. · Foto: Photo by Royal New Zealand Air Force, 1977. · Wikimedia Commons
Tipo
Estratovolcán
País
France - claimed by Vanuatu
Región
Pacífico Suroccidental / Vanuatu Volcanic Arc
Altitud
177 m
Coordenadas
-22.330, 171.320
Última erupción
1956
Contexto tectónico
Subduction zone / Crustal thickness unknown
Forma volcánica
Composite
Roca principal
Andesite / Basaltic Andesite
Resumen geológico

Matthew Island is composed of two low andesitic-to-dacitic cones separated by a narrow isthmus. The Matthew name originates from an English mariner who sighted the island in 1788. Only the triangular eastern portion of the 0.6 x 1.2 km island was present prior to the 1940s, when construction of the larger western segment began; it consists primarily of lava flows. The western cone contains a crater that is breached to the NW and is filled by a lava flow whose terminus forms the NW coast.

Resumen de Wikipedia

Las islas Matthew y Hunter son un grupo de dos islas volcánicas deshabitadas que en conjunto poseen 1,3 km² y que son administrados por Francia y ubicadas a 300 km al este del archipiélago francés. A pesar de ser administrada por Francia, Vanuatu las considera parte de la provincia de Tafea.

Wikipedia · CC BY-SA · Leer artículo completo →

Historial de erupciones

Resumen (VEI en el tiempo)
Haga clic en una barra para ver erupciones individuales
1828~1843 · 1 erupciones · VEI máx. ?1946~1961 · 3 erupciones · VEI máx. 21961~1976 · 3 erupciones · VEI máx. 118281858190219321961

Línea de tiempo detallada

  1. 1976VEI 1Estimación geológica
    1976-11-27 – En curso
  2. 1966VEI ?Estimación geológica
    1966-08-16 – En curso
  3. 1963VEI 0Observado
    1963-09-11 – 1964-07-02
    Norfolk Island Ridge
  4. 1956 (±2 años)VEI 0Observado
    1956-07-02 – En curso
    West-Matthew
  5. 1954VEI 2Observado
    1954-10-16 – En curso
    West-Matthew (October 1954, not 1953)
  6. 1949VEI 2Observado
    1949-07-02 – En curso
    West-Matthew
  7. 1828VEI ?Estimación geológica
    1828-01-16 – En curso

Enlaces externos

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