Global Volcanism Program | Image GVP-10020
The Lomas Coloradas pyroclastic cones along the SW coast of Socorro appear in the background behind a geologist near the summit of Cerro Evermann. A brief phreatic eruption apparently occurred from a cinder cone west of the Lomas Coloradas on May 22, 1951, witnessed from a yacht anchored offshore at Caleta Binner. During a 5-10 minute period, a plume sequentially red, black, and then white rose a short distance above the cone, and bombs or blocks fell around the cone. The plume eventually reached a height of about 1200 m.
Photo by Hugo Delgado-Granados, (Universidad Nacional Autónoma de México).