El Jorullo

El Jorullo is a cinder cone volcano in Michoacán, central Mexico, on the southwest slope of the central plateau, 33 miles (53 kilometers) southeast of Uruapan in an area known as the Michoacán-Guanajuato volcanic field. Coordinates are 18°58′26.43″N 101°43′2.97″W / 18.9740083°N 101.7174917°W / 18.9740083; -101.7174917 (18.974008, -101.717492), about 6 miles (10 kilometers) east-northeast of La Huacana. Its current elevation is 1,320 metres (4,331 ft). El Jorullo has four smaller cinder cones which have grown from its flanks. The vents of El Jorullo are aligned in a northeast to southwest direction. Lava from these vents cover nine square km around the volcano. Later eruptions produced lavas that had higher silica contents making them...