I'm here on the 16th floor in Indianapolis, and we felt it (although people who were on the ground at the time apparently didn't).
Second earthquake I've ever experienced. The first one was a more high-frequency vibration. As I worked at the newspaper at the time, we thought at first it was the presses coming on line. The shaking was no worse than that.
This one had more of a long-wave feel to it, and felt bigger in amplitude (which the 5.0 reading would seem to confirm).
The initial reports we got had the epicenter in Paducah, but that's been changed to Darmstadt, IN--down by Evansville, right near Abe Lincoln's boyhood home.
That'll be the most excitement we get all week at work. Another earthquake with no rioting, no looting ... *sigh*
JtT