answer:I am about as qualified to answer this as Homer Simpson is, so dont take my word for it. I suspect that wind alone would not be enough to cause problems, even some flying debris should be no problem. Japan was hit by one of the largest earthquakes in recorded history, and a tsunami. I have a lot of respect for the power of natural forces, I’m not trying to belittle what a tornado can do by any means, but there are disasters and then there are disasters. p.s. If i am wrong, and a tornado could cause a power plant to have a meltdown….. ummm, fix it? anyone for fix it? We have concrete, we have a tape measure, make the walls thicker or something.