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Tuesday, August 23, 2011 at 18:46:50 UTC
Tuesday, August 23, 2011 at 02:46:50 PM at epicenter
0.1 km (~0.1 mile) (poorly constrained)
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
horizontal +/- 2.4 km (1.5 miles); depth +/- 5.3 km (3.3 miles)
NST= 10, Nph= 12, Dmin=53 km, Rmss=0.16 sec, Gp= 97°,
M-type=duration magnitude (Md), Version=A
Southeast U.S. Seismic Network
Originally posted by tncryptogal
reply to post by sylvrshadow
I was just wondering how the two quakes today will affect the New Madrid. Or will it affect the fault at all?
I asked on this thread because you guys seem to know a bit more than most.
The Central Virginia seismic zone is far from the nearest plate boundaries, which are in the center of the Atlantic Ocean and in the Caribbean Sea. The seismic zone is laced with known faults but numerous smaller or deeply buried faults remain undetected. Even the known faults are poorly located at earthquake depths. Accordingly, few, if any, earthquakes in the seismic zone can be linked to named faults. It is difficult to determine if a known fault is still active and could slip and cause an earthquake. As in most other areas east of the Rockies, the best guide to earthquake hazards in the seismic zone is the earthquakes themselves.
Originally posted by PuterMan
Hurricane Irene on her way to add to the confusion.
Mm. Can't think of anything else except - have they really evacuated the Pentagon?