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La Soufrière

Soufriere St. Vincent

Stratovulcano · 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
Tipo
Stratovulcano
Paese
Saint Vincent and the Grenadines
Regione
Middle America-Caribbean Volcanic Regions / Lesser Antilles Volcanic Arc
Altitudine
1220 m
Coordinate
13.330, -61.180
Ultima eruzione
2021
Contesto tettonico
Subduction zone / Oceanic crust (< 15 km)
Forma vulcanica
Composite
Roccia principale
Andesite / Basaltic Andesite
Sintesi geologica

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.

Sintesi da Wikipedia

La Soufrière o Soufrière Saint Vincent è un vulcano attivo situato sull'isola di Saint Vincent, nei Caraibi.

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
2380 BCE~2180 BCE · 3 eruzioni · VEI max. ?2180 BCE~1980 BCE · 2 eruzioni · VEI max. ?1780 BCE~1580 BCE · 1 eruzioni · VEI max. ?780 BCE~580 BCE · 1 eruzioni · VEI max. ?580 BCE~380 BCE · 1 eruzioni · VEI max. ?820~1020 · 1 eruzioni · VEI max. ?1220~1420 · 2 eruzioni · VEI max. ?1420~1620 · 2 eruzioni · VEI max. ?1620~1820 · 5 eruzioni · VEI max. 41820~2020 · 5 eruzioni · VEI max. 42380 BCE1380 BCE180 BCE8201820

Cronologia dettagliata

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

Link esterni

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