Michigan experienced a 4.0 seismic event ----8 kilometers south of Galesburg, MI -- at 12:23 PM today, Saturday.
It shook my house in East Lansing, was noted by MSU employees and East Lansing Police Department and 2-3 neighbors here on Spartan Avenue.
Here is the USGS site:
http://earthquake.usgs.gov/...{%22feed%22%3A%221day_m25%22%2C%22search%22%3Anull%2C%22listFormat%22%3A%22default%22%2C%22sort%22%3A%22newest%22%2C%22basemap%22%3A%22grayscale%22%2C%22autoUpdate%22%3Atrue%2C%22restrictListToMap%22%3Atrue%2C%22timeZone%22%3A%22utc%22%2C%22mapposition%22%3A[[-8.407168163601076%2C-164.35546875]%2C[66.16051056018838%2C4.39453125]]%2C%22overlays%22%3A{%22plates%22%3Atrue}%2C%22viewModes%22%3A{%22list%22%3Atrue%2C%22map%22%3Atrue%2C%22settings%22%3Afalse%2C%22help%22%3Afalse}}
Galesburg, MI area:
https://www.google.com/...
10:29 AM PT: I've received reports that the quake was felt in Ann Arbor and Grand Rapids.