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La Soufrière

Soufriere St. Vincent

Stratovolkan · Saint Vincent and the Grenadines · 1220 m

Soufrière St. Vincent volcano forms the northern end of the island of St. Vincent. The 1178-m-high stratovolcano, seen here from off the west coast, has a broad summit. The peak at the left, the volcano's high point, is the NW rim of a large crater created by a massive volcanic landslide. The present-day, 1.6-km-wide summit crater truncates a cone (forming the flat-topped area across the saddle to the right) that was constructed within the earlier crater. Several powerful explosive eruptions have occurred in historical time since 1718.
Soufrière St. Vincent volcano forms the northern end of the island of St. Vincent. The 1178-m-high stratovolcano, seen here from off the west coast, has a broad summit. The peak at the left, the volcano's high point, is the NW rim of a large crater created by a massive volcanic landslide. The present-day, 1.6-km-wide summit crater truncates a cone (forming the flat-topped area across the saddle to the right) that was constructed within the earlier crater. Several powerful explosive eruptions have occurred in historical time since 1718. · Foto: Photo by William Melson, 1972 (Smithsonian Institution). · Wikimedia Commons
Tipe
Stratovolkan
Negara
Saint Vincent and the Grenadines
Wilayah
Amerika Tengah & Karibia / Lesser Antilles Volcanic Arc
Ketinggian
1220 m
Koordinat
13.330, -61.180
Letusan terakhir
2021
Kondisi tektonik
Subduction zone / Oceanic crust (< 15 km)
Bentuk lahan
Composite
Batuan utama
Andesite / Basaltic Andesite
Ringkasan geologi

Soufrière St. Vincent is the northernmost and youngest volcano on St. Vincent Island. The NE rim of the 1.6-km wide summit crater is cut by a crater formed in 1812. The crater itself lies on the SW margin of a larger 2.2-km-wide caldera, which is breached widely to the SW as a result of slope failure. Frequent explosive eruptions after about 4,300 years ago produced pyroclastic deposits of the Yellow Tephra Formation, which cover much of the island. The first historical eruption took place in 1718; it and the 1812 eruption produced major explosions. Much of the northern end of the island was devastated by a major eruption in 1902 that coincided with the catastrophic Mont Pelée eruption on Martinique. A lava dome was emplaced in the summit crater in 1971 during a strictly effusive eruption, forming an island within a lake that filled the crater. A series of explosive eruptions in 1979 destroyed the 1971 dome and ejected the lake; a new dome was then built.

Ringkasan Wikipedia

Ringkasan Inggris

La Soufrière or Soufrière Saint Vincent is an active volcano on the Caribbean island of Saint Vincent in Saint Vincent and the Grenadines. It is the highest peak on Saint Vincent, and has had eight recorded eruptions since 1718. The latest eruptive activity began on 27 December 2020 with the slow extrusion of a dome of lava, and culminated in a series of explosive events between 9 and 22 April 2021.

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Riwayat letusan

Ringkasan (VEI dari waktu ke waktu)
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2380 BCE~2180 BCE · 3 letusan · VEI maks. ?2180 BCE~1980 BCE · 2 letusan · VEI maks. ?1780 BCE~1580 BCE · 1 letusan · VEI maks. ?780 BCE~580 BCE · 1 letusan · VEI maks. ?580 BCE~380 BCE · 1 letusan · VEI maks. ?820~1020 · 1 letusan · VEI maks. ?1220~1420 · 2 letusan · VEI maks. ?1420~1620 · 2 letusan · VEI maks. ?1620~1820 · 5 letusan · VEI maks. 41820~2020 · 5 letusan · VEI maks. 42380 BCE1380 BCE180 BCE8201820

Garis waktu rinci

  1. 2020VEI 4Teramati
    2020-12-27 – 2021-04-22
  2. 1979VEI 3Teramati
    1979-04-13 – 1979-10-26
  3. 1971VEI 0Teramati
    1971-10-04 – 1972-03-20
  4. 1902VEI 4Teramati
    1902-05-06 – 1903-03-30
  5. 1880VEI 0Perkiraan geologi
    1880-07-02 – Berlangsung
  6. 1814VEI 1Teramati
    1814-01-09 – 1814-01-09
  7. 1812VEI 4Teramati
    1812-04-27 – 1812-06-09
    Old summit crater & new NE rim crater
  8. 1784VEI 0Teramati
    1784-03 – Berlangsung
  9. 1718VEI 3Teramati
    1718-03-26 – 1718-03-29
  10. 1640 (±50 tahun)VEI ?Perkiraan geologi
    1640 – Berlangsung
  11. 1550 (±50 tahun)VEI ?Perkiraan geologi
    1550 – Berlangsung
  12. 1480 (±150 tahun)VEI ?Perkiraan geologi
    1480 – Berlangsung
  13. 1395 (±75 tahun)VEI ?Perkiraan geologi
    1395 – Berlangsung
  14. 1325 (±75 tahun)VEI ?Perkiraan geologi
    1325 – Berlangsung
  15. 905 (±75 tahun)VEI ?Perkiraan geologi
    905 – Berlangsung
  16. 530 SM (±75 tahun)VEI ?Perkiraan geologi
    BCE 530 – Berlangsung
  17. 750 SM (±100 tahun)VEI ?Perkiraan geologi
    BCE 750 – Berlangsung
  18. 1600 SM (±75 tahun)VEI ?Perkiraan geologi
    BCE 1600 – Berlangsung
  19. 2020 SM (±75 tahun)VEI ?Perkiraan geologi
    BCE 2020 – Berlangsung
  20. 2135 SM (±50 tahun)VEI ?Perkiraan geologi
    BCE 2135 – Berlangsung
  21. 2200 SM (±150 tahun)VEI ?Perkiraan geologi
    BCE 2200 – Berlangsung
  22. 2310 SM (±100 tahun)VEI ?Perkiraan geologi
    BCE 2310 – Berlangsung
  23. 2380 SM (±100 tahun)VEI ?Perkiraan geologi
    BCE 2380 – Berlangsung

Tautan eksternal

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