The U.S. Geological Survey today is reporting a "minor" earthquake, registering 3.2 on the Richter scale, in southwestern Virginia. The tremor occurred at 12:53 p.m., about 7 miles north northwest of Raven, Va., near Richlands. It was centered a little more than 7 miles below the Earth's surface, making it a relatively shallow quake.
Here's a grab bag of facts and figures about earthquakes in the U.S. And here's more on Virginia quakes.