Grady County, OK has a low earthquake risk, with a total of 86 earthquakes since 1931. The USGS database shows that there is a 3.50% chance of a major earthquake within 50km of Grady County, OK within the next 50 years. The largest earthquake within 30 miles of Grady County, OK was a 4.2 Magnitude in 1995.
View the probability of a major earthquake within the next 50 years in Grady County, OK.
View the number of earthquake incidents in Grady County, OK by year that are more than 2.5 Magnitude.
Total Number of Earthquakes in Grady County, OK within 30 miles. All distances and depths in the table are measured in miles.