I didn't feel a thing...
but I'm used to small shakes as I live right on a fairly bussy road (as evedenced by my dog getting killed last week). I remember hearing a weird rumbleing sound at about that time, but I don't think that would have been it.
I do live right next to St.Louis, and this hit near Chicago, so that's probly why I didn't feel anything.
and Illinois is NOT away from major fault lines, the new madrid fault is a very powerful but less active fault it oftine goes many years without doing anything then BAM! 9.0, it's been over 100 years sence the last big quake, so were about due.