Vanuatu · Caldera
Kuwae
- Tipo
- Caldera
- Altitudine
- 2 m (sottomarino)
- Ultima eruzione
- 1974
- Tipo
- Caldera
- Paese
- Vanuatu
- Regione
- Pacifico sud-occidentale / Vanuatu Volcanic Arc
- Altitudine
- 2 m (sottomarino)
- Coordinate
- -16.830, 168.523
- Ultima eruzione
- 1974
- Contesto tettonico
- Zona di subduzione / Crosta intermedia (15-25 km)
- Forma vulcanica
- Caldera
- Roccia principale
- Basalto / Picrobasalto
Sintesi geologica
The largely submarine Kuwae caldera occupies the area between Epi and Tongoa islands. The 6 x 12 km caldera contains two basins that cut the NW end of Tongoa Island and the flank of the Tavani Ruru volcano on the SE peninsula of Epi Island. Native legends and radiocarbon dates from pyroclastic-flow deposits have been correlated with a 1452 CE ice-core peak thought to be associated with collapse of Kuwae caldera; however, others considered the deposits to be of smaller-scale eruptions and the ice-core peak to be associated with another unknown major South Pacific eruption. The submarine Karua cone in the east-central part of the caldera has formed several ephemeral islands since it was first observed in eruption during 1897.
Sintesi da Wikipedia
Riassunto in ingleseKuwae was a landmass that existed in the vicinity of Tongoa and was destroyed by volcanic eruption in fifteenth century, probably through caldera subsidence. The exact location of the caldera is debated. A submarine caldera, now known as Kuwae caldera and which is located between the Epi and Tongoa islands, is a candidate. Kuwae caldera cuts through the flank of the Tavani Ruru volcano on Epi and the northwestern end of Tongoa. Another potential candidate is a proposed caldera between Tongoa and Tongariki.
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Storia delle eruzioni
18 registrateGlossarioCronologia dettagliata
- 1980VEI 0Metodo non indicato1980-08-20 – fine sconosciutaKarua
- 1979VEI 0Metodo non indicato1979-09-16 – fine sconosciutaKarua
- 1977VEI 0Metodo non indicato1977-02-01 – fine sconosciutaKarua
- 1974VEI 0Osservata1974-02-04 – 1974-09-16Karua
- 1973VEI 0Metodo non indicato1973-05-05 – 1973-10-16Karua
- 1972VEI 0Metodo non indicato1972-03-05 – 1972-05-15Karua
- 1971VEI 2Osservata1971-02-22 – 1971-02-22Karua
- 1970VEI 0Metodo non indicato1970-09-12 – 1970-09-20Karua
- 1959VEI 2Osservata1959-09-18 – 1959-09-20Karua
- 1958VEI 2Osservata1958-10-07 – 1958-12-18Karua
- 1953VEI 1Osservata1953-02-12 – fine sconosciutaKarua
- 1952VEI 1Osservata1952-10-03 – 1952-10-03Karua
- 1949VEI 3Osservata1949-04-16 – fine sconosciutaKarua
- 1949VEI 3Osservata1949-10-16 – 1949-12-16Karua
- 1948VEI 2Osservata1948-09-22 – 1948-09-29Karua
- 1923VEI 2Osservata1923-07-02 – 1925-07-02Karua
- 1897VEI 1Osservata1897-05-25 – 1901-07-02Karua
- 1425 (±5 anni)VEI ?Stima geologica1425 – fine sconosciuta
Vulcani nelle vicinanze
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