So that's what it was!!!! I'm home today and I have my hearing aids off. I thought maybe they were doing construction.
It was quite strong, the table shook and so did my closet door. I happened to be practicing my sign and there's a mirror on the outside of my closet door. The door was open at the time so I could see myself in the mirror better.
ETA: Was anybody elses' pets jumpy earlier today? One of my cats was acting very hyper for at least an hour before the quake. I could not figure out what was going on with her. Last time she acted like that she was a kitten. She's back to her usual self now.