Global Volcanism Program | Image GVP-07636
The rounded peak of Usulután is the 2nd highest of a cluster of volcanic peaks north of the Pacific coastal plain between San Vicente and San Miguel volcanoes. Usulután is seen here from the SSW with a large erosional valley cutting its flank. Cerro Oromontique, the small peak on the left horizon, was erupted along a fissure cutting the flank of El Tigre volcano. Relatively young lava flows are located on the southern flank of Usulután volcano.
Photo by Lee Siebert, 1999 (Smithsonian Institution).