Earthquake Risk in Minnesota

Minnesota has very low seismic risk. Earthquakes are rare and typically very small, though the state sits on ancient geological structures that occasionally produce minor seismicity. The largest recorded event was a M4.6 in 1975 near Morris.

The largest earthquake recorded in Minnesota was a magnitude 2.8 Near Mankato, Minnesota on April 25, 2017. Minnesota has 4 notable earthquakes on record since 2004, with the most recent being a M2.7 on October 19, 2023.