Vai al contenuto principale
← Torna alla mappa
⇄ Confronta

Isole Matthew e Hunter

Matthew Island

Stratovulcano · 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
Stratovulcano
Paese
France - claimed by Vanuatu
Regione
Pacifico sud-occidentale / Vanuatu Volcanic Arc
Altitudine
177 m
Coordinate
-22.330, 171.320
Ultima eruzione
1956
Contesto tettonico
Subduction zone / Crustal thickness unknown
Forma vulcanica
Composite
Roccia principale
Andesite / Basaltic Andesite
Sintesi geologica

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.

Sintesi da Wikipedia

Riassunto in inglese

Matthew Island and Hunter Island are two uninhabited volcanic islands in the South Pacific, 300 kilometres (190 mi) east of New Caledonia and south-east of Vanuatu. The pair, which lie 70 km (43 mi) apart, are claimed by Vanuatu as part of Tafea Province, and considered by the people of Aneityum part of their custom ownership, but also claimed by France as part of New Caledonia.

Wikipedia · CC BY-SA · Leggi l'articolo completo →

Storia delle eruzioni

Riepilogo (VEI nel tempo)
Fai clic su una barra per vedere le singole eruzioni
1828~1843 · 1 eruzioni · VEI max. ?1946~1961 · 3 eruzioni · VEI max. 21961~1976 · 3 eruzioni · VEI max. 118281858190219321961

Cronologia dettagliata

  1. 1976VEI 1Stima geologica
    1976-11-27 – In corso
  2. 1966VEI ?Stima geologica
    1966-08-16 – In corso
  3. 1963VEI 0Osservata
    1963-09-11 – 1964-07-02
    Norfolk Island Ridge
  4. 1956 (±2 anni)VEI 0Osservata
    1956-07-02 – In corso
    West-Matthew
  5. 1954VEI 2Osservata
    1954-10-16 – In corso
    West-Matthew (October 1954, not 1953)
  6. 1949VEI 2Osservata
    1949-07-02 – In corso
    West-Matthew
  7. 1828VEI ?Stima geologica
    1828-01-16 – In corso

Link esterni

⚠ Solo a scopo informativo. Non adatto a situazioni di emergenza.