Grayson County, TX has a very low earthquake risk, with a total of 3 earthquakes since 1931. The USGS database shows that there is a 0.81% chance of a major earthquake within 50km of Grayson County, TX within the next 50 years. The largest earthquake within 30 miles of Grayson County, TX was a 3.3 Magnitude in 1985.
View the probability of a major earthquake within the next 50 years in Grayson County, TX.
View the number of earthquake incidents in Grayson County, TX by year that are more than 2.5 Magnitude.
Total Number of Earthquakes in Grayson County, TX within 30 miles. All distances and depths in the table are measured in miles.