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Vulcano Amukta

Amukta

Stratovulcano · United States · 1066 m

Amukta in the central Aleutians is located along the coast of the 8-km-wide island of the same name. It has had several eruptions since the late 18th century from both summit and flank vents.
Amukta in the central Aleutians is located along the coast of the 8-km-wide island of the same name. It has had several eruptions since the late 18th century from both summit and flank vents. · Foto: Photo by U.S. Fish and Wildlife Service, 1972 (courtesy of Alaska Volcano Observatory). · Wikimedia Commons
Tipo
Stratovulcano
Paese
United States
Regione
North America Volcanic Regions / Aleutian Ridge Volcanic Arc
Altitudine
1066 m
Coordinate
52.500, -171.252
Ultima eruzione
1996
Contesto tettonico
Subduction zone / Intermediate crust (15-25 km)
Forma vulcanica
Composite
Roccia principale
Andesite / Basaltic Andesite
Sintesi geologica

The symmetrical Amukta stratovolcano lies in the central Aleutians SW of Chagulak Island and is the westernmost of the Islands of the Four Mountains group. The stratovolcano was constructed at the northern side of an arcuate caldera-like feature that is open to the sea along the southern coast of the 8-km-wide Amukta Island. It overlies a broad shield volcano and is topped by a 400-m-wide crater, and a cinder cone is located near the NE coast. There have been several reported eruptions from both summit and flank vents.

Sintesi da Wikipedia

Il Vulcano Amukta è uno stratovulcano integro che costituisce quasi per intero l'omonima isola, 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
1770~1793 · 2 eruzioni · VEI max. 31861~1884 · 2 eruzioni · VEI max. ?1952~1974 · 1 eruzioni · VEI max. 31974~1997 · 3 eruzioni · VEI max. 117701815188419291974

Cronologia dettagliata

  1. 1997VEI 1Osservata
    1997-03-03 – In corso
  2. 1996VEI 1Osservata
    1996-09-17 – 1996-09-18
  3. 1987VEI 1Osservata
    1987-09-04 – 1987-09-04
  4. 1963VEI 3Osservata
    1963-02-13 – In corso
  5. 1878VEI ?Osservata
    1878 – In corso
  6. 1876VEI ?Stima geologica
    1876 – In corso
  7. 1786VEI 3Osservata
    1786-06 – 1791
  8. 1770VEI ?Stima geologica
    1770 – In corso

Link esterni

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