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Ilopango caldera, El Salvador.

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Date Added: Dec 3, 2005
Popularity: 0
Category: Craters

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Ilopango is a caldera that formed in 260 A.D. Ash from this explosive eruption covered much of central El Salvador. Lake Ilopango fills part of the caldera. Islas Quemadas, a volcanic dome, formed within the caldera in 1879-1880. Periods of dome extrusion coincided with tidal forces. Earthquake swarms preceded each extrusion.

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