Orange County, CA has a very high earthquake risk, with a total of 220 earthquakes since 1931. The USGS database shows that there is a 95.31% chance of a major earthquake within 50km of Orange County, CA within the next 50 years. The largest earthquake within 30 miles of Orange County, CA was a 5.5 Magnitude in 2008.
View the probability of a major earthquake within the next 50 years in Orange County, CA.
View the number of earthquake incidents in Orange County, CA by year that are more than 2.5 Magnitude.
Total Number of Earthquakes in Orange County, CA within 30 miles. All distances and depths in the table are measured in miles.