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
Region VIRGINIA
Distances
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
Source
West Coast and Alaska Tsunami Warning Center/NOAA/NWS