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Mount Alayta

Alayta

Volcán en escudo · 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
Volcán en escudo
País
Ethiopia
Región
Eastern Africa Volcanic Regions / Afar Rift Volcanic Province
Altitud
1496 m
Coordenadas
12.888, 40.573
Última erupción
1915
Contexto tectónico
Rift zone / Intermediate crust (15-25 km)
Forma volcánica
Shield
Roca principal
Basalt / Picro-Basalt
Resumen geológico

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.

Resumen de Wikipedia

Resumen en inglés

Mount Alayta is an active shield volcano in the Afar Region of Ethiopia. It is part of the Afar Triangle, a highly active volcanic region which includes the adjacent Mount Afdera. Mount Alayta covers an area of 2,700 square kilometers southwest of Lake Afrera. A chain of younger craters are aligned along a north-northwest axis in the basaltic-to-trachytic shield along the east side of the shield volcano, which extends to the western flank of Mount Afdera. The Alayta Lavafeld was formed from a series of north-south fissures. In two areas on the southern side of the volcanic complex, fumaroles can be observed.

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Historial de erupciones

Resumen (VEI en el tiempo)
Haga clic en una barra para ver erupciones individuales
1907~1908 · 1 erupciones · VEI máx. 21914~1915 · 1 erupciones · VEI máx. 219071909191119131914

Línea de tiempo detallada

  1. 1915VEI 2Observado
    1915 – En curso
  2. 1907VEI 2Observado
    1907-06 – 1907-08-04
    SE flank

Enlaces externos

⚠ Solo como referencia. No apto para respuesta ante emergencias.