Well, we are only 24hrs or so in with regard to the North Anna Nuclear Power plant, which was only 5 miles from the epicentre of the 5.8 earth quake. Considering that external power was lost to the site and the reactors were using last ditch on site diesel power backup (of which 1 of the 4 diesel gen sets failed) then I suspect that major damage may have occurred. Hopefully nothing that will continue to hamper the shutdown (which will take weeks to months for the pile to cool down), but it may be that these reactors will never restart again.