Deborah (25 Aug 2011)
"Check out how far VA 5.8M Quake Was Felt"

http://earthquake.usgs.gov/earthquakes/dyfi/events/se/082311a/us/index.html

http://earthquake.usgs.gov/earthquakes/dyfi/events/se/082311a/us/index.html


Click on the Zoom Out Map

It was felt all the way to Quebec North and Alabama in the South......to the West it was even felt in Chicago and East of Nashville TN.  That's pretty wide spread for a 5.8M.