The new Madrid fault line runs right through the Eastern region of the mid west and there is a strong possibility that seismic activity is going to get increasingly more intense( bad shit ) then from the northwestern Midwest around the yellow stone area there is a possibility for a geological formation ( really bad shit)
This not to scare people but to make them aware and give them at least the opportunity to react.
Think about ir like this if your near the seismic activity in the new Madrid logic would say you should .....