El Chichón

El Chichón, also known as Chichonal (roughly translated in English as "The bump") is an active volcano in Francisco León Municipality in northwestern Chiapas, Mexico. Its only recorded eruptive activity was on March 28, April 3 and April 4, 1982, when it produced a one km-wide caldera that then filled with an acidic crater lake. The number of deaths, although unknown, is estimated around 2,000.^[2] It had high-sulfur anhydrite-bearing magma, explosive eruptions, pyroclastic flows, and surges that were devastating to the area surrounding the volcano.

• http://en.wikipedia.org/wiki/El Chichón