The 700-m-wide Cráter Activo contains an acidic lake that is periodically partially ejected by explosive eruptions and therefore varies in depth. Trade winds from the ENE distribute acidic gas plumes to the SW, preventing vegetation growth.

Photo by Guillermo Alvarado (Instituto Costarricense de Electricidad).

This image is made available under the Creative Commons BY-NC 4.0 license terms.

Keywords: crater | crater lake | stratigraphy | gas | gas plume | emissions | degassing

Rincón de la Vieja