Wow, they are coming up with as many flip-flops as Japan! It was sloshing that killed the nuclear plant.
They are continuing their pathetic search for 'telltales', which is the #1 plan for earthquakes in eastern nuclear land. Also #1 in Canada. That means they decided in advance, using the typical bad physics, what things should happen with a significant earthquake. If they don't find any of these things, then that gives the 'all clear' to start the plant. This strategy has never worked! I argued strenuously against it, before I got kicked out.
Now, honestly, my bile is reserved for Pickering which is instrument-less. Darlington was very nice, and we've got it peppered with instruments. First off, we have 2 top-grade broad-range seismometers, hooked into the national grid. These will give us an accurate PGV, up to fairly high levels. Then we have a good internal system, which I suppose is still working. The only thing missing is a good plan on how to deal with the results, should there be an M6 on the Hamilton fault. Without a plan, the instruments are probably useless, since they will show a high spike PGA, no matter what.