This afternoon, an earthquake hit Virginia between Charlottesville and Richmond. It measured 5.9 on the Richter scale. For an earthquake, that's in the "moderate" range but for an East Coast earthquake, it's quite unusual. A look at the historical data for the eastern US states shows that this is the biggest quake to hit this coast since 1897 (a 5.9 in VA) and the second biggest of all time (well, since they started recording such things) after a 7.3 that hit South Carolina in 1886.