A vertical aerial photo of the Quaternary Fentale volcanic complex, lying along the main Ethiopian rift zone, has a prominent summit caldera and lava flows along its flanks. The 3 x 4 km caldera with steep-sided walls up to 500 m high is elongated perpendicular to the direction of the regional fissures of the Ethiopian Rift. Note the recent rhyolitic obsidian lava flow to the NE (upper right) marked with curved flow ridges. The dark lava flow on the caldera floor was erupted in 1820.

Photo by Imperial Highway Authority of Ethiopia (published in Green and Short, 1971).

This image is made available under the Creative Commons BY-NC-ND 4.0 license terms.

Galleries: Calderas

Keywords: caldera

Fentale