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Monte Vsevidof

Vsevidof

Stratovulcano · United States · 2160 m

Mount Vsevidof is allocated on SW Umnak Island. The historically active volcano, seen here from the south, contains an E-W zone of scoria cones on the W flank that fed many lava flows, including a large flow that reached the west coast of the island and formed Cape Kigushimkada.
Mount Vsevidof is allocated on SW Umnak Island. The historically active volcano, seen here from the south, contains an E-W zone of scoria cones on the W flank that fed many lava flows, including a large flow that reached the west coast of the island and formed Cape Kigushimkada. · Foto: Photo by Chris Nye (Alaska Division of Geological & Geophysical Surveys). · Wikimedia Commons
Tipo
Stratovulcano
Paese
United States
Regione
North America Volcanic Regions / Aleutian Ridge Volcanic Arc
Altitudine
2160 m
Coordinate
53.126, -168.688
Ultima eruzione
1878
Contesto tettonico
Subduction zone / Intermediate crust (15-25 km)
Forma vulcanica
Composite
Roccia principale
Andesite / Basaltic Andesite
Sintesi geologica

The symmetrical Vsevidof stratovolcano, near the SW end of Umnak Island, contains a 1.2-km-wide, ice-filled summit crater that is breached by glaciers on the E and N sides. An E-W-trending zone of scoria cones that extends down much of the W flank has been the source of recorded eruptions. Most of the cone was constructed during the Holocene. Andesitic and dacitic lava flows originated from vents on the N and S flanks, and on the W-flank rift. The largest lava flow traveled down the W flank to the coast, forming Cape Kigushimkada.

Sintesi da Wikipedia

Il Monte Vsevidof è uno stratovulcano simmetrico posto nella parte sud-occidentale dell'isola di Umnak, nelle Aleutine.

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
1784~1801 · 2 eruzioni · VEI max. ?1801~1819 · 1 eruzioni · VEI max. 31819~1836 · 1 eruzioni · VEI max. ?1871~1888 · 2 eruzioni · VEI max. 21940~1957 · 1 eruzioni · VEI max. 217841819187119051940

Cronologia dettagliata

  1. 1957VEI 2Stima geologica
    1957-03-11 – 1957-03-12
    West flank fissure
  2. 1880VEI ?Stima geologica
    1880 – In corso
  3. 1878VEI 2Osservata
    1878 – In corso
    West flank fissure ?
  4. 1830VEI ?Osservata
    1830 – In corso
    SW end of Umnak Island
  5. 1817VEI 3Osservata
    1817 – In corso
  6. 1790VEI ?Stima geologica
    1790-05-30 – In corso
  7. 1784VEI ?Stima geologica
    1784 – In corso

Link esterni

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