Global Volcanism Program | Image GVP-04648
Lake Ilopango is seen in this aerial view from the SW with San Vicente stratovolcano at the right. The latest collapse of the 8 x 11 km Ilopango caldera occurred after a powerful eruption during the 5th century CE that produced widespread pyroclastic flows and devastated early Mayan cities. Dacitic lava domes form small islands near the shore of the lake and rocky islets near its center.
Copyrighted photo by Stephen O'Meara.