At around 5:37am EST Louisville Kentucky was hit by a mild earthquake, a 5.4, with the epicenter about 117 miles west of Louisville in Illinois.
Here's a map of the location, which you can contribute to. Do a search for your address, add a marker, and type a description of what it was like for you!
Metro Mapper Collaborative Map
Official USGS map
USGS Full Details
Report your experience to USGS