Global Volcanism Program | Image GVP-09420
Meru volcano (upper right), Africa's fourth highest mountain, is seen from the ice-covered summit plateau of neighboring Kilimanjaro volcano. The volcano is cut by a 5-km-wide breached caldera on the E side that formed about 7,800 years ago when the summit collapsed. A massive debris avalanche and lahar traveled to the east as far as the western flank of Kilimanjaro.
Photo by Tom Jorstad, 1991 (Smithsonian Institution).
This image is made available under the Public Domain Dedication CC0 license, but proper attribution is appreciated.