Tuesday, August 23, 2011

SMALL AFTERSHOCKS FELT IN VIRGINIA: More sizable shakers are still "probable."

Logo of the United States Golf Association.Image via WikipediaBy Randy Economy
www.LosCerritosNews.net
Tuesday, August 23, 20111
4:10 p.m.

Virginia:

Two aftershocks have lingered around the Virginia countryside this afternoon that ranged from 2.2 to 2.8, and officials warn that more "sizable" aftershocks may be felt for days or weeks ahead. Within minutes after the last aftershock of 2.8, more than 712 people sent messages to the United States Geological Association via their website.

Did you feel it? Visit the USGA by clicking here!



Magnitude 2.8
Date-Time

Tuesday, August 23, 2011 at 18:46:50 UTC
Tuesday, August 23, 2011 at 02:46:50 PM at epicenter
Time of Earthquake in other Time Zones

Location 37.931°N, 77.935°W
Depth 0.1 km (~0.1 mile) (poorly constrained)
Region VIRGINIA
Distances

9 km (5 miles) SSW (195°) from Mineral, VA
12 km (7 miles) SSE (151°) from Louisa, VA
28 km (18 miles) NE (45°) from Columbia, VA
34 km (21 miles) E (88°) from Lake Monticello, VA
60 km (38 miles) NW (316°) from Richmond, VA
136 km (84 miles) SW (217°) from Washington, DC

Location Uncertainty horizontal +/- 2.4 km (1.5 miles); depth +/- 5.3 km (3.3 miles)
Parameters NST= 10, Nph= 12, Dmin=53 km, Rmss=0.16 sec, Gp= 97°,
M-type=duration magnitude (Md), Version=A
Source

Southeast U.S. Seismic Network

Event ID se082311b
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