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Pulau Gaua

Gaua

Stratovolkan · Vanuatu · 729 m

A plume rises from the active crater of Mount Garat in this view across Lake Letas, within the 6 x 9 km summit caldera of Gaua volcano (also known as Santa Maria). Three craters are located at the top of Mount Garat. The onset of eruptive activity from a vent high on the SE flank in 1962 ended a long period of dormancy.
A plume rises from the active crater of Mount Garat in this view across Lake Letas, within the 6 x 9 km summit caldera of Gaua volcano (also known as Santa Maria). Three craters are located at the top of Mount Garat. The onset of eruptive activity from a vent high on the SE flank in 1962 ended a long period of dormancy. · Foto: Photo by John Seach, 1999. · Wikimedia Commons
Tipe
Stratovolkan
Negara
Vanuatu
Wilayah
Southwestern Pacific Volcanic Regions / Vanuatu Volcanic Arc
Ketinggian
729 m
Koordinat
-14.281, 167.514
Letusan terakhir
2022
Kondisi tektonik
Subduction zone / Intermediate crust (15-25 km)
Bentuk lahan
Composite
Batuan utama
Andesite / Basaltic Andesite
Ringkasan geologi

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.

Ringkasan Wikipedia

Pulau Gaua [gawa] adalah pulau terbesar di Kepulauan Banks dan terpadat kedua di Provinsi Torba, Vanuatu utara. Pulau ini seluas 342 km².

Wikipedia · CC BY-SA · Baca artikel lengkap →

Riwayat letusan

Ringkasan (VEI dari waktu ke waktu)
Klik pada bar untuk melihat letusan individu
1875~1890 · 1 letusan · VEI maks. ?1949~1963 · 2 letusan · VEI maks. 21963~1978 · 9 letusan · VEI maks. 31978~1993 · 3 letusan · VEI maks. 22007~2022 · 4 letusan · VEI maks. 218751904194919782007

Garis waktu rinci

  1. 2022VEI 1Teramati
    2022-05-03 – 2022-05-03
    Mt. Garet
  2. 2021VEI 1Teramati
    2021-11-16 – 2021-11-16
    Mt. Garet
  3. 2011VEI 1Teramati
    2011-09-17 – 2011-10-10
    Mt. Garat
  4. 2009VEI 2Teramati
    2009-09-27 – 2010-06-19
    Mt. Garat
  5. 1982VEI 2Teramati
    1982-04-18 – 1982-04-18
    Mt. Garat
  6. 1981VEI 1Teramati
    1981-07-09 – 1981-07-09
    Mt. Garat
  7. 1980VEI 1Teramati
    1980-07-02 – Berlangsung
    Mt. Garat
  8. 1977VEI 2Teramati
    1977-04-13 – 1977-04-13
    Mt. Garat
  9. 1976VEI 2Teramati
    1976-01-15 – Berlangsung
    Mt. Garat
  10. 1973VEI 2Teramati
    1973-10-09 – 1974-01-21
    Mt. Garat (upper SE flank)
  11. 1971VEI 2Teramati
    1971-05-12 – 1971-05-13
    Mt. Garat (upper SE flank)
  12. 1969VEI 2Teramati
    1969-09-22 – Berlangsung
    Mt. Garat
  13. 1968VEI 2Teramati
    1968-07-02 – 1968-12-01
    Mt. Garat (upper SE flank)
  14. 1967VEI 2Teramati
    1967-07-16 – Berlangsung
    Mt. Garat
  15. 1966VEI 2Teramati
    1966-07-02 – Berlangsung
    Mt. Garat
  16. 1965VEI 3Teramati
    1965-09-27 – 1965-09-30
    Mt. Garat
  17. 1963VEI 2Teramati
    1963-09-15 – 1963-11-09
    Mt. Garat (upper SE flank)
  18. 1962VEI 2Teramati
    1962-07-16 – Berlangsung
    Mt. Garat
  19. 1875VEI ?Teramati
    1875-06 – Berlangsung

Tautan eksternal

⚠ Untuk referensi saja. Bukan untuk tanggap darurat.