Me too! Philly area, eastern PA. It was a big un,. 5.8 (googled it) and centered in Virginia. We felt just a little tremor, thought it was a large truck or something. Then one of my moms work friends in DC said they felt it there too! East coast doesn't have earthquakes often, but when it does they tend to be larger, as we are in the center of a tectonic plate, so the energy needed to cause an earthquake is far greater. Here's hopin that was the last of it... no aftershocks please!