There are 3 earthquake incidents in Delaware on record since 1931. The state averages less than 1 earthquake per year. The largest earthquake on record for Delaware occurred on 11/30/2017, with a depth of 8.1 miles and a magnitude of 5.1 on the Richter scale in Kent County, DE.
Yearly Average Number of Earthquakes in Delaware
Total Number of Earthquakes in Delaware since 1931