Earthquakes and Bobcats

So there was an earthquake in Virginia today, and we felt it up here in Northeastern PA. It was weird. My aunt was upstairs cleaning the bathroom at the time, and for a moment, I thought she was scrubbing the tub vigorously enough to shake the house. It lasted about 15-20 seconds, and that was it. I had no idea what it was. It damaged a cracked concrete wall in my yard. Between that and the bobcat we saw in my yard yesterday (which we rarely have in my area), it's been an interesting week so far.