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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
Northwestern Pacific Volcanic Regions / 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

Riassunto in inglese

Asuncion is an island in the Mariana Islands chain in the Pacific Ocean. The island is uninhabited. Asuncion is situated 101 kilometers northwest of Agrihan and 37 km southeast of the Maug Islands. The island is part of the Commonwealth of the Northern Mariana Islands.

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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 – In corso
  2. 1906VEI 2Osservata
    1906 – 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.