Seismic Risk
The Nuclear Regulatory Commission's estimate of the risk each year of an earthquake intense enough to cause core damage to the reactor at North Anna was 1 in 22,727, according to an NRC study published in August 2010.
According to the USGS, two distinct seismic zones are located in Virginia. The Central Virginia Seismic Zone and the Giles County Seismic Zone. Both of these zones produce recurrent small earthquakes at least every few years. The North Anna Nuclear Generating Station, located 40 miles north west of Richmond, lies within the Central Virginia Seismic Zone.
Read more about this topic: North Anna Nuclear Generating Station
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