Global Volcanism Program | Image GVP-03875
A small pyroclastic flow produced by collapse of a growing lava dome descends about 750 m down the north flank of El Brujo vent on July 7, 1967. The Pacific coastal plain is visible in the distance. El Brujo is the westernmost vent of the compound Santiaguito lava dome, which extends about 3 km in a roughly E-W direction.
Copyrighted photo by Dick Stoiber, 1967 (Dartmouth College).