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Global Volcanism Program | Image GVP-10201

The Cerro Prieto compound rhyodacite lava dome is the only volcanic feature of the Cerro Prieto geothermal field. A 200-m-wide crater is located at the summit of the NE-most dome. The dome probably formed during at least five eruptive stages between about 100,000 and 10,000 years ago, with both magmatic and phreatic activity. Explorers in the mid-1500s reported steam and sulfuric gases. Photo by Brian Hausback, 1995 (California State University, Sacramento).

The Cerro Prieto compound rhyodacite lava dome is the only volcanic feature of the Cerro Prieto geothermal field. A 200-m-wide crater is located at the summit of the NE-most dome. The dome probably formed during at least five eruptive stages between about 100,000 and 10,000 years ago, with both magmatic and phreatic activity. Explorers in the mid-1500s reported steam and sulfuric gases.

Photo by Brian Hausback, 1995 (California State University, Sacramento).

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Galleries: Geothermal Features

Keywords: geothermal | lava dome


Cerro Prieto