Global Volcanism Program | Image GVP-10011
Fumarolic areas at Socorro are concentrated near the summit of Cerro Evermann. They occur on all sides of North Dome, a young lava dome just north of the summit of 1050-m-high Cerro Evermann. The most extensive hydrothermal alteration is located in areas on the east, west, and SW sides of North Dome.
Photo by Martha Marin, 1998 (Mexican Navy).