Global Volcanism Program | Image GVP-07616
Izalco has been El Salvador's most active volcano during historical time. More than 50 eruptions, many of several years to about a decade duration, took place since 1770, when the volcano was born. During its 200 year history prior to 1966, when activity ceased, the volcano was rarely quiet for more than a few years. Eruptions took place both from the summit craters and from flank vents. Unvegetated lava flows are seen here on the SE flank below Cerro Verde volcano (center) and the twin cones of El Conejal and El Astillero (right).
Photo by Paul Kimberly, 1999 (Smithsonian Institution).