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Global Volcanism Program | Image GVP-07063

The walls of Cráter Activo (Active Crater) expose thick sequences of oxidized and hydrothermally altered pyroclastic deposits and light-colored lava flows.  Many sublacustral eruptions from Active Crater have originated from vents beneath the acidic crater lake seen at the lower right. Photo by Guillermo Alvarado (Instituto Costarricense de Electricidad).

The walls of Cráter Activo (Active Crater) expose thick sequences of oxidized and hydrothermally altered pyroclastic deposits and light-colored lava flows. Many sublacustral eruptions from Active Crater have originated from vents beneath the acidic crater lake seen at the lower right.

Photo by Guillermo Alvarado (Instituto Costarricense de Electricidad).


Rincón de la Vieja