Minnesota's Earthquake of September 3, 1917
Minnesota's only known earthquake was recorded in the September 1917 issue of Climatological Data. Minnesota Section., Department of Agriculture, Weather Bureau. The observer noted that "Practically no damage was done." This publication also contains precipitation, temperature and storm information and continues today. The National Climatic Data Center makes available *.pdf versions of all years of Climatological Data, which for Minnesota, goes back to 1884. If you are in a FDLP library or at an educational institution, you may view these reports online for free.