The 9-km-wide Cha caldera, open to the east, truncates the summit of Fogo stratovolcano. An ash plume (center) rises from an active vent on the western flank of the steep-sided Pico central cone (right). Pico is more than 1 km high and capped by an approximately 500-m-wide, 100-m-deep summit crater. Numerous historical eruptions have occurred from the summit of Pico and from its flanks in Cha caldera.

Photo by Dick Moore, 1995 (U.S. Geological Survey).

This image is made available as a Public Domain Work, but proper attribution is appreciated.

Keywords: stratovolcano | gas | gas plume | plume | scoria cone

Fogo