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isola Asuncion

Asuncion

Stratovulcano · United States · 857 m

An aerial view from the SW shows the upper slopes of Asuncion in the northern Mariana Islands. It forms a circular 3-km-wide island that has had no permanent residents since the late 17th century. An explosive eruption in 1906 produced lava flows that descended about halfway down the W and S flanks.
An aerial view from the SW shows the upper slopes of Asuncion in the northern Mariana Islands. It forms a circular 3-km-wide island that has had no permanent residents since the late 17th century. An explosive eruption in 1906 produced lava flows that descended about halfway down the W and S flanks. · Foto: Photo by Richard Moore, 1992 (U.S. Geological Survey). · Wikimedia Commons
Tipo
Stratovulcano
Paese
United States
Regione
Pacifico nord-occidentale / Mariana Volcanic Arc
Altitudine
857 m
Coordinate
19.671, 145.406
Ultima eruzione
1906
Contesto tettonico
Subduction zone / Crustal thickness unknown
Forma vulcanica
Composite
Roccia principale
Andesite / Basaltic Andesite
Sintesi geologica

A single large asymmetrical stratovolcano forms 3-km-wide Asuncion Island. The steeper NE flank terminates in high sea cliffs, while the gentler SW flanks have low-angle slopes bounded by sea cliffs only a few meters high. The southern flank is cut by a large landslide scar. The S and W flanks are covered by ash deposits. An explosive eruption in 1906 produced lava flows that descended about halfway down the W and SE flanks, but several other eruption reports are of uncertain validity.

Sintesi da Wikipedia

L'isola Asuncion è un'isola vulcanica dell'Oceano Pacifico appartenente alle isole Marianne. Ha una superficie di 7.31 km², è disabitata, ed amministrativamente appartiene alla municipalità Isole Settentrionali delle isole Marianne Settentrionali.

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
1690~1713 · 1 eruzioni · VEI max. ?1760~1784 · 1 eruzioni · VEI max. 21901~1924 · 2 eruzioni · VEI max. 216901737180718541901

Cronologia dettagliata

  1. 1924VEI 2Stima geologica
    1924-07-02 – In corso
  2. 1906VEI 2Osservata
    1906-07-02 – In corso
    Upper SE and W flanks
  3. 1775 (±10 anni)VEI 2Stima geologica
    1775 – In corso
  4. 1690 (±10 anni)VEI ?Stima geologica
    1690 – In corso

Link esterni

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