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Antisana

Stratovulcano · Ecuador · 5753 m

Antisana is a massive, glacier-covered stratovolcano NE of Cotopaxi. The 1.4 x 1.8 km summit crater, seen here from the north, is breached to the SE. Viscous, youthful block lava flows have issued from radial fissures on the flanks of 5753-m-high Antisana. The only unequivocal historical eruption took place from 1801 to 1802. Eighteenth-century eruptions occurred NW of Antisana within Chacana caldera, which lies beneath the cloud bank in the foreground.
Antisana is a massive, glacier-covered stratovolcano NE of Cotopaxi. The 1.4 x 1.8 km summit crater, seen here from the north, is breached to the SE. Viscous, youthful block lava flows have issued from radial fissures on the flanks of 5753-m-high Antisana. The only unequivocal historical eruption took place from 1801 to 1802. Eighteenth-century eruptions occurred NW of Antisana within Chacana caldera, which lies beneath the cloud bank in the foreground. · Foto: Photo by Minard Hall, 1975 (Escuela Politécnica Nacional, Quito). · Wikimedia Commons
Tipo
Stratovulcano
Paese
Ecuador
Regione
South America Volcanic Regions / Northern Andean Volcanic Arc
Altitudine
5753 m
Coordinate
-0.481, -78.141
Ultima eruzione
1802
Contesto tettonico
Subduction zone / Continental crust (> 25 km)
Forma vulcanica
Composite
Roccia principale
Andesite / Basaltic Andesite
Sintesi geologica

Antisana is a massive, glacier-covered stratovolcano NE of Cotopaxi, along the western margin of the Eastern Cordillera, 50 km SE of Quito. An older edifice forming the east side of the volcano was constructed over granitic and metasedimentary rocks and is itself overtopped on its NW side by the current edifice. Viscous lava flows have issued from radial fissures on the flanks. A lava flow was erupted from a vent NNE of the summit during 1801-1802.

Sintesi da Wikipedia

Antisana è uno stratovulcano andino ed una delle principali vette dell'Ecuador. Per altitudine, con 5.758 metri sul livello del mare, è il quarto vulcano del paese. L'ultima eruzione documentata risale al 1801/1802 quando da una bocca sul versante nordorientale fuoriuscì un fiume di lava.

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
1728~1735 · 1 eruzioni · VEI max. 01743~1750 · 1 eruzioni · VEI max. 21794~1801 · 1 eruzioni · VEI max. 217281743176517791794

Cronologia dettagliata

  1. 1801VEI 2Stima geologica
    1801 – 1802-05
    Volcano Uncertain: possibly Reventador
  2. 1748VEI 2Stima geologica
    1748 – In corso
    Volcano Uncertain: possibly Reventador
  3. 1728VEI 0Stima geologica
    1728 – In corso

Link esterni

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