Izalco volcano was once known as the "Lighthouse of the Pacific" for its persistent incandescent nighttime eruptions. It was constructed on the southern flank of Santa Ana, whose broad summit is to the left. To the right is Cerro Verde, a scoria cone on the SE Santa Ana flank. Lava flows at the base if Izalco from both summit and flank vents and extend out to 7 km.

Photo by Lee Siebert, 1999 (Smithsonian Institution).

This image is made available under the Public Domain Dedication CC0 license, but proper attribution is appreciated.

Keywords: stratovolcano

Izalco

Santa Ana