The 1940 El Centro Earthquake

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Interview with Dick McCoy


The 1940 El Centro Earthquake

The 1994 Northridge Earthquake

On the Mud Volcanoes of the Salton Sea

Dick McCoy, Born 1925, Pacific Beach, California


Nine people were killed by the May 18, 1940 El Centro / Imperial Valley earthquake.

At Imperial, 80 percent of the buildings were damaged to some degree.

In the business district of Brawley, all structures were damaged, and about 50 percent had to be condemned.

The shock caused 40 miles of surface faulting on the Imperial Fault, a branch of the San Andreas Fault.

The earthquake had an effect on the mud volcanoes of the Salton Sea.

The earthquake magnitude was 7.1.

Text: Victor M. Ponce

Camera: Shavger Rekani

Music: Fernando Oñate

Editor: Flor Pérez

Credits: U.S. Geological Survey

Photos: U.S. Coast and Geodetic Survey

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