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Adwa

Stratovolcano · Ethiopia · 1670m

A caldera 4 x 5 km wide cuts the summit of Adwa volcano above the center of this NASA Landsat image with N to the top. This prominent volcano (also known as Aabida, Amoissa, or Dabita) is in the southern Afar area immediately E of Ayelu volcano, which lies above and to the left of the westernmost flank lava flow. These prominent young basaltic lava flows were erupted from vents on the W, E, and S flanks of Adwa volcano and overlap a sedimentary plain to the SE.
A caldera 4 x 5 km wide cuts the summit of Adwa volcano above the center of this NASA Landsat image with N to the top. This prominent volcano (also known as Aabida, Amoissa, or Dabita) is in the southern Afar area immediately E of Ayelu volcano, which lies above and to the left of the westernmost flank lava flow. These prominent young basaltic lava flows were erupted from vents on the W, E, and S flanks of Adwa volcano and overlap a sedimentary plain to the SE. · Photo: NASA Landsat 7 image (worldwind.arc.nasa.gov) · Wikimedia Commons
Type
Stratovolcano
Country
Ethiopia
Region
Eastern Africa / Main Ethiopian Rift Volcanic Province
Elevation
1670m
Coordinates
10.063, 40.831
Last eruption
Unknown
Tectonic setting
Rift zone / Intermediate crust (15-25 km)
Landform
Composite
Major rock type
Rhyolite
Geological summary

Adwa (also known as Aabida, Amoissa, or Dabita), is a broad stratovolcano in the southern Afar area immediately east of the younger vegetated Ayelu volcano. It has a roughly 3 x 4 km caldera that originated following eruption of voluminous ignimbrites, with a trachytic dome extruded in the eastern part of the caldera. Scoria cones are located on the floor of the caldera and on its NW and SW flanks. Extensive young basaltic lava flows cover the flanks and overlap a sedimentary plain to the SE. Many fumaroles occur within the caldera. Satellitic pyroclastic cones and lava domes were considered to be only a few hundred years old (Mohr 1980, pers. comm.). Dark lava flows originating from cones about 4 km from the caldera rim on the SW flank cover more than 50 km2.

Eruption history

Summary (VEI over time)
Click a bar to see individual eruptions
1828~1838 · 1 eruptions · max VEI 21918~1928 · 1 eruptions · max VEI 218281848187818981918

Detailed timeline

  1. 1928VEI 2Geological estimate
    1928-07-02 – Ongoing
  2. 1828VEI 2Geological estimate
    1828-07-02 – Ongoing

External links

⚠ For reference only. Not for emergency response.