Tag Archives: Magnitude 2.1

Virginia earthquake August 30, 2011, Magnitude 2.1, 86 miles from Washington DC

 Virginia earthquake August 30, 2011, Magnitude 2.1, 86 miles from Washington DC

From the USGS August 30, 2011.

Magnitude 2.1 – VIRGINIA

2011 August 30 13:26:50 UTC

Earthquake Details

  • This event has been reviewed by a seismologist.
Magnitude 2.1
Date-Time
Location 37.920°N, 77.978°W
Depth 5.8 km (3.6 miles)
Region VIRGINIA
Distances
  • 11 km (7 miles) SSW (212°) from Mineral, VA
  • 12 km (7 miles) S (170°) from Louisa, VA
  • 25 km (15 miles) NE (41°) from Columbia, VA
  • 31 km (19 miles) E (90°) from Lake Monticello, VA
  • 62 km (39 miles) NW (313°) from Richmond, VA
  • 139 km (86 miles) SW (218°) from Washington, DC
Location Uncertainty horizontal +/- 0.7 km (0.4 miles); depth +/- 0.5 km (0.3 miles)
Parameters NST= 11, Nph= 20, Dmin=2 km, Rmss=0.08 sec, Gp= 83°,
M-type=duration magnitude (Md), Version=A
Source
Event ID se083011a 

http://earthquake.usgs.gov/earthquakes/recenteqsus/Quakes/se083011a.php

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