Virginia Shaken by 5.9 Earthquake

Early Tuesday afternoon Virginia was shaken by an earthquake that measured 5.8 (Update) 5.9 on the Richter scale. The epicenter was in central Virginia nine miles south of the town of Mineral. Below is the information available from the U.S. Geologic survey on the event.

The tremor lasted for approximately 45 seconds and caused small items to shake back and forth and window panes to rattle.


Magnitude 5.8  (Preliminary magnitude — update expected within 15 minutes)
  • Tuesday, August 23, 2011 at 17:51:03 UTC
  • Tuesday, August 23, 2011 at 01:51:03 PM at epicenter
Location 37.875 °N, 77.908 °W
Depth 6 km (3.7 miles) set by location program
  • 15 km (9 miles) S (179 °) from Mineral, VA
  • 18 km (12 miles) SSE (154 °) from Louisa, VA
  • 26 km (16 miles) ENE (58 °) from Columbia, VA
  • 54 km (34 miles) NW (314 °) from Richmond, VA
  • 139 km (87 miles) SW (214 °) from Washington, DC
Location Uncertainty Error estimate not available
Parameters NST= 17, Nph= 17, Dmin=59.5 km, Rmss=0.33 sec, Gp=173 °,
M-type=”moment” magnitude from initial P wave (tsuboi method) (Mi/Mwp), Version=1
Event ID at00lqe6x3



  1. Birdonawire says:

    I’m working in Falls Church on the 6th floor… The entire building starting shaking and swaying..Yeah, it scared me.

  2. In Berryville, I felt a slight tremor of shaking and my elderly neighbor never noticed anything where she was home. Please don’t worry.