Karns City, PA has a very low earthquake risk, with a total of 0 earthquakes since 1931. The USGS database shows that there is a 0.79% chance of a major earthquake within 50km of Karns City, PA within the next 50 years.
View the probability of a major earthquake within the next 50 years in Karns City, PA.
See Pennsylvania Earthquake Report or Butler County, PA Earthquake Report