Miravalles Volcano

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Miravalles Volcano
Elevation 2,028 m
Location Costa Rica
Range Guanacaste Cordillera
Coordinates 10°44′54″N, 85°9′10″W
Type Stratovolcano
Age of rock 1.5 Myr
Last eruption 1946

The Miravalles Volcano is an andesitic stratovolcano in Costa Rica. The caldera was formed during several major explosive eruptions that produced voluminous dacitic-rhyolitic pyroclastic flows between about 1.5 and 0.6 million years ago. The only reported historical eruptive activity was a small steam explosion on the SW flank in 1946. High heat flow remains, and Miravalles is the site of the largest developed geothermal field in Costa Rica.

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