Here's the closest Helicorder display to my house. This one is from Leachville, AR. As you can clearly see, there was some shaking going on this morning. Despite all of the movement, The Vaughans slept right through it!
You don't need to know how to read a helicorder to see the earthquake. It was centered near West Salem, Illinois, but it was felt here in in Region 8, too.
Click here to see more Helcorder displays from this region. I sure hope that we never have an earthquake centered here!