Earthquake. About 2:00 PM US eastern time, in Virginia.
I'm about 60 miles away from the epicenter. Ground and building shook pretty good for about 10-20 seconds.
A few things fell of shelves.
What really surprised me was the noise. Sounded like a large bucket loader was driving around inside the building.
Lots of sheet metal in the walls and roof to rattle.
Only second one I ever experienced. First was in New York many moons ago. But only about half
as strong as this one. Many around here were shook up. First one for them.