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Global Volcanism Program | Image GVP-10173

The twin Anteojos lava domes form small peninsulas on the eastern shore of Lake Coatepeque.  Four other domes were constructed on the opposite side of the caldera along a line that passes through Izalco volcano to the SW.  The Anteojos domes, which rise only about 20-25 m above the lake surface, are mostly submerged.  The southern (near) dome is andesitic, whereas the northern dome has a rhyodacitic composition.  A chain of scoria cones was erupted along caldera ring faults; two of these are seen above the two domes. Photo by Lee Siebert, 2002 (Smithsonian Institution).

The twin Anteojos lava domes form small peninsulas on the eastern shore of Lake Coatepeque. Four other domes were constructed on the opposite side of the caldera along a line that passes through Izalco volcano to the SW. The Anteojos domes, which rise only about 20-25 m above the lake surface, are mostly submerged. The southern (near) dome is andesitic, whereas the northern dome has a rhyodacitic composition. A chain of scoria cones was erupted along caldera ring faults; two of these are seen above the two domes.

Photo by Lee Siebert, 2002 (Smithsonian Institution).


Coatepeque Caldera