No matter where you put it, of the states that raised their hands, there is a feasible catastrophe that could cause some issues. That said, the reality is that structure can be designed to withstand the disaster, and all facilities like this will have emergency operation items to keep it running while the rest of the area cleans up and gets reorganized. Generator banks, battery back ups, gas storage, back up chillers/heaters, etc. There will be double, if not triple, redundancy in all their critical systems at least.
Al the bullshit about nat dist's is just bullshit.
This is about either crazy people being crazy or economic impact. Most everything we have heard are people worried about the latter, using the former to scare everyone.