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Alayta

Vulcano a scudo · Ethiopia · 1496 m

Alayta shield volcano (left-center) covers an area of 2,700 km2 in the western Danakil depression. A series of recent craters is aligned along the NNW-trending axis. The Alayta lava field (center dark area) was erupted from N-S-trending fissures along the E side of the volcano and reaches the W flank of Afderà volcano, immediately S of Lake Guilietti (Lake Afrera) at the upper right-center.
Alayta shield volcano (left-center) covers an area of 2,700 km2 in the western Danakil depression. A series of recent craters is aligned along the NNW-trending axis. The Alayta lava field (center dark area) was erupted from N-S-trending fissures along the E side of the volcano and reaches the W flank of Afderà volcano, immediately S of Lake Guilietti (Lake Afrera) at the upper right-center. · Foto: NASA Landsat image, 1999 (courtesy of Hawaii Synergy Project, Univ. of Hawaii Institute of Geophysics & Planetology). · Wikimedia Commons
Tipo
Vulcano a scudo
Paese
Ethiopia
Regione
Eastern Africa Volcanic Regions / Afar Rift Volcanic Province
Altitudine
1496 m
Coordinate
12.888, 40.573
Ultima eruzione
1915
Contesto tettonico
Rift zone / Intermediate crust (15-25 km)
Forma vulcanica
Shield
Roccia principale
Basalt / Picro-Basalt
Sintesi geologica

The massive Alayta shield volcano covers an area of 2700 km2 in the western Danakil depression SW of Lake Afrera. A series of very recent craters is aligned along the NNW-trending axis of the basaltic-to-trachytic shield. The lava field, covered by very fresh flows, was erupted from N-S fissures along the east side of the shield volcano and laps up against the western flank of Afderà volcano. Two historical eruptions that were formerly attributed to Afderà actually originated from Alayta. One of those eruptions, in 1907, produced a large lava flow from a SE-flank vent. Fumarolic activity occurs at two locations in the southern part of the complex.

Sintesi da Wikipedia

L'Alayta è un gruppo di vulcani posta a sud-ovest del lago Afrera nella depressione dancalica in Etiopia.

Wikipedia · CC BY-SA · Leggi l'articolo completo

Storia delle eruzioni

Riepilogo (VEI nel tempo)
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1907~1908 · 1 eruzioni · VEI max. 21914~1915 · 1 eruzioni · VEI max. 219071909191119131914

Cronologia dettagliata

  1. 1915VEI 2Osservata
    1915 – In corso
  2. 1907VEI 2Osservata
    1907-06 – 1907-08-04
    SE flank

Link esterni

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