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Earthquakes in Southern California

There have been many earthquake occurrences in Southern California. This set of slides shows earthquake damage from the following events: Imperial Valley 1979, Westmorland 1981, Palm Springs 1986, and Whittier 1987. These events were all earthquakes with a magnitude of 5.9 or higher with damage estimates of one million dollars or more.

Fallen Porch after 1979 Imperial Valley Earthquake

Earthquake of October 15, 1979, Imperial Valley, California.
Epicenter: 32.6 deg N; 115.3 deg W. Magnitude 6.8. Damage: $30 million. The earthquake was felt over approximately 128,000 km2. The worst damage occurred in southern Imperial County and northeastern Baja California where eleven businesses and two homes were destroyed. 440 businesses and 1565 homes were damaged. Although there were no deaths, 91 people were reported injured, mainly by flying glass or by falling objects.

Fallen porch on 200 block of "G" Street in Brawley. Several homes were damaged in this block. Most of the residential damage was to chimneys. Photo Credit: G. Reagor, U.S. Geological Survey

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