This vertical aerial photo shows part of the 12-km-wide summit caldera of Ambrym. The craters emitting plumes to the lower left are Marum (top) and Benbow (bottom). The caldera formed during a major Plinian eruption that included pyroclastic flows about 1,900 years ago. Post-caldera eruptions, primarily from Marum and Benbow cones, have partially filled the caldera floor and also formed a series of cones and maars along a fissure system oriented ENE-WSW.

Photo by Royal Air Force (published in Green and Short, 1971).

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

Galleries: Craters | Calderas

Keywords: caldera | plume | emissions | gas | crater

Ambrym