Here is my post when we had the earthquake last year - I was relieved that I wasn't nuts and that someone else felt it! http://www.freerepublic.com/focus/f-news/1161472/posts?page=20#20
Someone else had to have seen or heard this (thanks GrayBeard for confiming the noise)...
I remember the thread about the earth quake too. I was awake and didn't hear or feel a thing. Learned later that it wasn't felt this far south but about 40 to 50 miles to the north they did feel it.
I was born and raised in New Madrid County, Missouri and felt a lot of them while growing up.
I was FReeping at that time and thought someone had slammed into the side of the house! The computer chair was also pushed slightly towards my desk. IIRC it was only a 3.0.
I believe you saw something. I'd call the non-emergency State Police number to see what they have.