1947 08 10 02:46:41.3 UTC (local 08/09)
Largest Earthquake in Michigan
Damage was heaviest in the area southeast of Kalamazoo at Athens, Bronson, Coldwater, Colon, Matteson Lake, Sherwood, and Union City. Chimneys were damaged, windows and plaster were broken, and brick cornices were downed. Also felt in Indiana, Illinois, Ohio, Wisconsin, and Ontario, Canada.
Abridged from Seismicity of the United States, 1568-1989 (Revised), by Carl W. Stover and Jerry L. Coffman, U.S. Geological Survey Professional Paper 1527, United States Government Printing Office, Washington: 1993.