Little Grass Valley, CA has a very high earthquake risk, with a total of 862 earthquakes since 1931. The USGS database shows that there is a 84.19% chance of a major earthquake within 50km of Little Grass Valley, CA within the next 50 years. The largest earthquake within 30 miles of Little Grass Valley, CA was a 5.7 Magnitude in 1975.
View the probability of a major earthquake within the next 50 years in Little Grass Valley, CA.
View the number of earthquake incidents in Little Grass Valley, CA by year that are more than 2.5 Magnitude.
Total Number of Earthquakes in Little Grass Valley, CA within 30 miles. All distances and depths in the table are measured in miles.