Walnut, CA has a very high earthquake risk, with a total of 12,296 earthquakes since 1931. The USGS database shows that there is a 98.69% chance of a major earthquake within 50km of Walnut, CA within the next 50 years. The largest earthquake within 30 miles of Walnut, CA was a 5.7 Magnitude in 1987.
View the probability of a major earthquake within the next 50 years in Walnut, CA.
View the number of earthquake incidents in Walnut, CA by year that are more than 2.5 Magnitude.
Total Number of Earthquakes in Walnut, CA within 30 miles. All distances and depths in the table are measured in miles.