Global Volcanism Program | Image GVP-08263
The Aguas Termales geothermal field at the southern base of Rincón de la Vieja volcano contains active mudpots. Several geothermal areas occur along a NW-trending lineation at the base of the volcano. Soil mercury studies delineate a fault parallel to the volcanic front that connects the geothermal sites.
Photo by Lee Siebert, 1998 (Smithsonian Institution).