Global Volcanism Program | Image GVP-06230
A public fountain at Ribeira Grande on the northern coast of San Miguel Island was buried by a lava flow that was erupted from Agua de Pau volcano in 1563. The lava flow originated during the Pico do Sapateiro eruption, which began on 2 July when vents formed across the Queimado dome on the NW flank, generating an eruption column with blocks and bombs. The flank eruption was preceded by a major Plinian eruption from the central caldera that began on 28 June and deposited trachytic pumice dominantly eastward over the island; the summit eruption ended a day after the flank activity began.
Photo by Rick Wunderman, 1997 (Smithsonian Institution).
This image is made available under the Public Domain Dedication CC0 license, but proper attribution is appreciated.