Historic Earthquakes

Concord, California
1955 October 24 04:10:44 UTC (local time October 23)
Magnitude 5.4

This earthquake killed one person and caused property damage estimated at $1 million. The damage generally was minor, however, consisting mainly of cracked walls and plaster, broken windows, and loss from damaged merchandise. Minor damage to brick chimneys (some toppled) and walls occurred at several other towns in the region. Felt over a moderate area of west-central California. Several aftershocks occurred.

Abridged from Seismicity of the United States, 1568-1989 (Revised), by Carl W. Stover and Jerry L. Coffman, U.S. Geological Survey Professional Paper 1527, United States Government Printing Office, Washington: 1993.