Jorullo scoria cone of the Michoacán-Guanajuato volcanic field is seen here from the ENE. The eruption began with phreatic and phreatomagmatic activity on 29 September 1759 with wet ashfall and lahars that caused damage to neighboring haciendas. By 13 November the cone had reached 250 m in height, and the eruption episode continued until 1774. The sparsely vegetated lava flow to the right was the produced near the end of the eruption.

Photo by Jim Luhr, 1997 (Smithsonian Institution).

This image is made available under the Public Domain Dedication CC0 license, but proper attribution is appreciated.

Keywords: scoria cone | lava flow | crater

Michoacán-Guanajuato