There are 730 earthquake incidents in Arkansas on record since 1931. The state averages 9 earthquakes per year. The largest earthquake on record for Arkansas occurred on 03/25/1976, with a depth of 15.0 miles and a magnitude of 4.9 on the Richter scale in Poinsett County, AR.
Yearly Average Number of Earthquakes in Arkansas
Total Number of Earthquakes in Arkansas since 1931