Global Volcanism Program | Image GVP-09427
Entry of the Delta Lávico lava flow into the sea produces steam along the flow margins. The flow originated from a vent low on the Volcán Bárcena 1952-53 tuff cone. Punta Sur, the southernmost tip of the island, is in the left background and is a Montículo Cinerítico tuff cone that formed prior to the 1952 eruption and was formerly the highest point on the island.
Photo by U.S. Navy, 1952 (courtesy of Sherman Neuschel, U.S. Geological Survey).