It has been 200 years since the great New Madrid quake series. While I have notice an every 200 years pattern to some earthquake and volcano events, I recently read that New Madrid research indicates a 500 year period for the really big ones. On the other hand, even a more modest one could cause serious damage with all the population/buildings now in the New Madrid/St. Louis area, especially given that there has been an upsurge in modest quakes in surrounding areas like Arkansas.
If I lived in that area. I would store lots of water in used milk jugs and other containers somewhere that nothing would fall on them. I would also have emergency bag(s) near the front or back door ready for a quick exit. Also boxes of canned and plastic bottled foodstuffs where it could easily be reached if there was damage to my home and I had to camp out or go live with friends and couldn’t go back inside safely. Better safe than sorry. Think of the poor folks after Hurricane Andrew.
All . . .
here’s a thread on which we can discuss prophetic sources and events related to such things:
http://www.freerepublic.com/focus/f-religion/2687394/posts
Then there is Yellowstone...