Grantley, PA has a low earthquake risk, with a total of 31 earthquakes since 1931. The USGS database shows that there is a 1.21% chance of a major earthquake within 50km of Grantley, PA within the next 50 years. The largest earthquake within 30 miles of Grantley, PA was a 4.2 Magnitude in 1984.
View the probability of a major earthquake within the next 50 years in Grantley, PA.
View the number of earthquake incidents in Grantley, PA by year that are more than 2.5 Magnitude.
Total Number of Earthquakes in Grantley, PA within 30 miles. All distances and depths in the table are measured in miles.