Historic Earthquakes

Southern Michigan
1947 08 10 02:46:41.3 UTC (local 08/09)
Magnitude 4.60
Intensity VI

Largest Earthquake in Michigan

Isoseismal Map

Isoseismals are based on intensity estimates from data.

Isoseismal Map

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.