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Mount Alayta

Alayta

Gunung api perisai · 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
Tipe
Gunung api perisai
Negara
Ethiopia
Wilayah
Eastern Africa Volcanic Regions / Afar Rift Volcanic Province
Ketinggian
1496 m
Koordinat
12.888, 40.573
Letusan terakhir
1915
Kondisi tektonik
Rift zone / Intermediate crust (15-25 km)
Bentuk lahan
Shield
Batuan utama
Basalt / Picro-Basalt
Ringkasan geologi

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.

Ringkasan Wikipedia

Ringkasan Inggris

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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Riwayat letusan

Ringkasan (VEI dari waktu ke waktu)
Klik pada bar untuk melihat letusan individu
1907~1908 · 1 letusan · VEI maks. 21914~1915 · 1 letusan · VEI maks. 219071909191119131914

Garis waktu rinci

  1. 1915VEI 2Teramati
    1915 – Berlangsung
  2. 1907VEI 2Teramati
    1907-06 – 1907-08-04
    SE flank

Tautan eksternal

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