Volcanologist Maurice Krafft measures the temperature of a pyroclastic-flow deposit from El Chichón volcano in April 1982. Pyroclastic flows and surges devastated an area of about 150 km² around the volcano in a series of powerful eruptions March 28 to April 4.

Copyrighted photo by Katia and Maurice Krafft, 1983.

Copyrighted image used with permission. All Rights Reserved. Contact photographer for any usage requests.

El Chichón