Global Volcanism Program | Image GVP-09425
A new pyroclastic cone, Volcán Bárcena, was rapidly constructed during explosive eruptions beginning August 1, 1952 at the south end of Isla San Benedicto. This photo was taken from off the west coast of the island only four minutes after the start of the eruption and also shows the onset of pyroclastic surges. Lava dome extrusion occurred in September, November, and December. On December 8 lava effusion began from a vent on the SE flank, producing a lava delta that extended about 700 m to sea. Activity ended in late February.
Photo by Robert Petrie, 1952 (U.S. Navy; courtesy of Sherman Neuschel, U.S. Geological Survey).