Vai al contenuto principale
← Torna alla mappa
⇄ Confronta

Grande Découverte

Soufriere Guadeloupe

Stratovulcano · France · 1467 m

La Soufrière volcano, the highest in the West Indies, is a complex stratovolcano that dominates the southern end of Basse-Terre, the western half of the butterfly-shaped island of Guadeloupe. A steam-and-ash column rises above the summit in this October 1976 view from the NE at Pointe-a-Pitre, on the isthmus connecting the island segments. The peak at the left (above the sailboat), l'Echelle, is a young cinder cone; the summit itself is a 500-year-old lava dome, and remnants of older collapsed volcanoes are located to its right.
La Soufrière volcano, the highest in the West Indies, is a complex stratovolcano that dominates the southern end of Basse-Terre, the western half of the butterfly-shaped island of Guadeloupe. A steam-and-ash column rises above the summit in this October 1976 view from the NE at Pointe-a-Pitre, on the isthmus connecting the island segments. The peak at the left (above the sailboat), l'Echelle, is a young cinder cone; the summit itself is a 500-year-old lava dome, and remnants of older collapsed volcanoes are located to its right. · Foto: Photo by Richard Fiske, 1976 (Smithsonian Institution). · Wikimedia Commons
Tipo
Stratovulcano
Paese
France
Regione
Middle America-Caribbean Volcanic Regions / Lesser Antilles Volcanic Arc
Altitudine
1467 m
Coordinate
16.044, -61.664
Ultima eruzione
1977
Contesto tettonico
Subduction zone / Oceanic crust (< 15 km)
Forma vulcanica
Composite
Roccia principale
Andesite / Basaltic Andesite
Sintesi geologica

La Soufrière de la Guadeloupe volcano occupies the southern end of Basse-Terre, the western half of the island of Guadeloupe. Construction of the Grand Découverte volcano about 200,000 years ago was followed a Plinian eruption and caldera formation about 100,000 years later, and then by construction of the Carmichaël volcano within the caldera. Two episodes of edifice collapse and associated large debris avalanches formed the Carmichaël and Amic craters about 11,500 and 3,100 years ago, respectively. The present volcano subsequently grew within the Amic crater. The summit consists of a flat-topped lava dome, and several other domes occur on the southern flanks. Six phreatic explosive eruptions since 1690 opened radial fractures across the summit lava dome. The phreatic eruptions in 1976-77 caused severe economic disruption when Basse-Terre, the island's capital city immediately below the volcano, was evacuated.

Sintesi da Wikipedia

La Grande Soufrière è uno stratovulcano attivo che si trova nelle isole francesi di Basse-Terre nell'isola di Guadalupa. Alto 1467 metri, è la montagna più alta delle piccole Antille.

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
7490 BCE~7174 BCE · 1 eruzioni · VEI max. ?6543 BCE~6228 BCE · 1 eruzioni · VEI max. ?3388 BCE~3073 BCE · 1 eruzioni · VEI max. ?2126 BCE~1810 BCE · 1 eruzioni · VEI max. ?1810 BCE~1495 BCE · 1 eruzioni · VEI max. ?1495 BCE~1179 BCE · 1 eruzioni · VEI max. 31179 BCE~864 BCE · 1 eruzioni · VEI max. ?864 BCE~548 BCE · 2 eruzioni · VEI max. 383~398 · 1 eruzioni · VEI max. ?1345~1660 · 1 eruzioni · VEI max. 41660~1976 · 8 eruzioni · VEI max. 27490 BCE5281 BCE2757 BCE548 BCE1660

Cronologia dettagliata

  1. 1976VEI 2Osservata
    1976-07-08 – 1977-03-01
    SE side of summit (Gouffre Tarissan)
  2. 1956VEI 1Osservata
    1956-10-19 – 1956-10-27
    ESE side, Napoléon Crater
  3. 1903VEI 2Stima geologica
    1903 – In corso
    SE side summit dome
  4. 1836VEI 2Osservata
    1836-12-03 – 1837-02-12
    SE to NW sides of summit dome
  5. 1812VEI 1Osservata
    1812-04 – 1812-05-10
    E-W fissure on summit dome
  6. 1797VEI 2Osservata
    1797-09-29 – 1798-04-26
    NNW side of summit dome
  7. 1696VEI 1Osservata
    1696-04 – In corso
    North side of summit dome
  8. 1690VEI 1Osservata
    1690-04-05 – In corso
    Gouffre Dupuy, Gouffre Tarissan
  9. 1530 (±30 anni)VEI 4Stima geologica
    1530 – In corso
    La Soufrière
  10. 370 (±75 anni)VEI ?Stima geologica
    370 – In corso
    La Citerne and L'Eschelle cones
  11. 580 a.C.VEI 2Stima geologica
    BCE 580 – In corso
    South flank (Morne Lenglet)
  12. 820 a.C. (±100 anni)VEI 3Stima geologica
    BCE 820 – In corso
    Morne Amic ?
  13. 980 a.C. (±200 anni)VEI ?Stima geologica
    BCE 980 – In corso
  14. 1310 a.C. (±150 anni)VEI 3Stima geologica
    BCE 1310 – In corso
    Morne Amic
  15. 1810 a.C. (±150 anni)VEI ?Stima geologica
    BCE 1810 – In corso
  16. 2050 a.C.VEI ?Stima geologica
    BCE 2050 – In corso
  17. 3310 a.C. (±150 anni)VEI ?Stima geologica
    BCE 3310 – In corso
    South flank (Gros Fougas)
  18. 6450 a.C. (±150 anni)VEI ?Stima geologica
    BCE 6450 – In corso
  19. 7490 a.C. (±150 anni)VEI ?Stima geologica
    BCE 7490 – In corso

Link esterni

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