The inner Agua de Pau caldera, seen here from the western caldera rim, is now partially filled by Lagoa do Fogo caldera lake. The caldera was the source of a major explosive eruption about 4,600 years ago that deposited tephra layer Fogo A, and marked the renewal of explosive activity within the approximately 12,000-year-old caldera. The eruption also produced massive pyroclastic flows across most of the volcano’s flanks.

Photo by Rick Wunderman, 1997 (Smithsonian Institution).

This image is made available under the Public Domain Dedication CC0 license, but proper attribution is appreciated.

Keywords: caldera

Agua de Pau