Well, I'm glad Lamont's press release got picked up by a few news outlets. Of course, the plant issues some ripe manure about 'able to take an M7'. Yeah, an M7 on the other side of the world! I love these things!
In reality, the only thing that could pop a nuclear plant is a close M6 or M7, with the plant right on the hanging wall, getting hit by the 'Fist of God' (like the Japan plant!). If you can assure that you are not that 'lucky' with your location, then your plant is immune from earthquakes. All the work that I had laid in over the years with the old company proves that point with Darlington (if only they'd use it!). Otherwise, they are dancing with that 'probabilistic seismic hazard' confusedness, and good luck with that!