Has there ever been an earthquake in Minnesota?
Yes. The USGS catalog lists 6 earthquakes of magnitude 2.5 or more inside Minnesota since 1900. The largest is magnitude 4.6, on July 9, 1975, and the latest is magnitude 2.8, on April 25, 2017.
Magnitude 3 or more by decade
Minnesota earthquakes of magnitude 3 or more, by decade
The largest
| Jul 9, 1975 | 4.6 | Near Morris, Minnesota |
| Sep 3, 1917 | 4.3 | Central Minnesota |
| Jun 5, 1993 | 4.1 | 11 km N of Johnson, Minnesota |
| Feb 9, 1994 | 3.1 | 6 km NNE of Blomkest, Minnesota |
| Apr 25, 2017 | 2.8 | Near Mankato, Minnesota |
| Apr 29, 2011 | 2.5 | Minnesota |