In 1968 San Jacinto Valley experienced a magnitude 6.5 earthquake. The San Jacinto Fault is capable of earthquakes at a 7.5 magnitude. Major earthquakes are believed to occur every 100 to 300 years.  15 miles to the north is the infamous San Andreas Fault.
Earthquakes in San Jacinto Valley

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Everybody knows that earthquakes are a real occurrence in Southern California. The three links listed below are interesting to visit after one of the small quakes the San Jacinto Valley feels once or twice a year:

Recent Earthquakes in Southern California


Did You Feel It?


24-Hour Aftershock Forecast Map


This map sometimes contains inaccuracies and missing data. Please visit the USGS web site for more details and a “clickable” version of this map.

Southern California Fault Map


Historic Earthquakes in Southern California


Southern California Earthquake Center




The Great California Shake Out


Riverside County Early Warning Notification System