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Morne Watt

Watt, Morne

Stratovulcano · Dominica · 1224 m

Fumarolic clouds mark the Valley of Desolation and Boiling Lake thermal areas, NE of Morne Watt (Watt Mountain) volcano in SE Dominica. The Valley of Desolation and the Boiling Lake are major tourist attractions within the national park east of Roseau. A major eruption from Morne Watt produced pyroclastic flows about 930 years ago. The only historical eruptions on the island of Dominica were a moderately large phreatic explosion at the Valley of Desolation thermal area in 1880 and a smaller phreatic explosion in July 1997.
Fumarolic clouds mark the Valley of Desolation and Boiling Lake thermal areas, NE of Morne Watt (Watt Mountain) volcano in SE Dominica. The Valley of Desolation and the Boiling Lake are major tourist attractions within the national park east of Roseau. A major eruption from Morne Watt produced pyroclastic flows about 930 years ago. The only historical eruptions on the island of Dominica were a moderately large phreatic explosion at the Valley of Desolation thermal area in 1880 and a smaller phreatic explosion in July 1997. · Foto: Photo by Paul Jackson, 1998 (Seismic Research Unit, University of West Indies). · Wikimedia Commons
Tipo
Stratovulcano
Paese
Dominica
Regione
Middle America-Caribbean Volcanic Regions / Lesser Antilles Volcanic Arc
Altitudine
1224 m
Coordinate
15.307, -61.305
Ultima eruzione
1997
Contesto tettonico
Subduction zone / Oceanic crust (< 15 km)
Forma vulcanica
Composite
Roccia principale
Andesite / Basaltic Andesite
Sintesi geologica

Morne Watt (Watt Mountain) volcano lies SE of the Trois Piton/Micotrin lava-dome complex in SE Dominica, E of the capital city of Roseau. The two best-known volcanic features on Dominica, the Valley of Desolation and the Boiling Lake thermal areas, lie on the flank; both are major tourist attractions within the national park. Morne Anglais stratovolcano lies 4 km SW of Morne Watt. Soufrière Hills volcano, with dated pyroclastic-flow producing eruptions ~10,000 years ago, lies 3 km E. A major eruption from Morne Watt producing pyroclastic flows occurred ~1300 years ago. A moderately large phreatic explosion took place at the Valley of Desolation thermal area NE of Morne Watt in 1880, when ash fell over a 4-km-wide sector at the coast, 10 km from the vent. A smaller phreatic explosion occurred in July 1997, when ashfall was confined to the Valley of Desolation area. These mark the only known historical eruptions on the island.

Sintesi da Wikipedia

Riassunto in inglese

Morne Watt or Watt Mountain is a mountain consisting of one or more stratovolcanoes at the south end of Dominica in the eastern Caribbean Sea. With an elevation of 1,224 m (4,016 ft), it is the third highest mountain in Dominica after Morne Diablotins and Morne Trois Pitons. The mountain is home to the Boiling Lake and Valley of Desolation thermal areas, both of which are the best-known volcanic features in Dominica and major tourist attractions in Morne Trois Pitons National Park.

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Storia delle eruzioni

Riepilogo (VEI nel tempo)
Fai clic su una barra per vedere le singole eruzioni
1800 BCE~1600 BCE · 1 eruzioni · VEI max. ?1001 BCE~801 BCE · 1 eruzioni · VEI max. ?598~798 · 1 eruzioni · VEI max. ?1797~1997 · 2 eruzioni · VEI max. 21800 BCE801 BCE1 BCE9981797

Cronologia dettagliata

  1. 1997VEI 1Osservata
    1997-07-15 – 1997-07-15
    NE of Watt Mtn (Valley of Desolation)
  2. 1880VEI 2Osservata
    1880-01-04 – 1880-01-04
    NE of Watt Mtn (Valley of Desolation)
  3. 640 (±150 anni)VEI ?Stima geologica
    640 – In corso
    West flank of Morne Watt
  4. 950 a.C. (±300 anni)VEI ?Stima geologica
    BCE 950 – In corso
    NE of Watt Mtn (Valley of Desolation)
  5. 1800 a.C. (±100 anni)VEI ?Stima geologica
    BCE 1800 – In corso
    NE of Watt Mtn (Valley of Desolation)

Link esterni

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