I was working at my computer this morning and felt the house and my desk shrug a bit, just shifting slightly, as if a large truck had driven by. It turns out that there was an 5.4* earthquake in Indiana (centered very near West Salem, Illinois) which was felt as far north as, well, my house.
No, that's not my house. The photo is from the 1906 San Francisco earthquake.
Looks like one of my dogs on the right, though.
*NOTE: Later reports put it at 5.2 on the Richter scale.