The big problem is that on the New Madrid fault an earthquake which would transpose those numbers is a possibility. The quakes of the early 1800s were estimated at about 8 and if they happened today they would cause almost as much damage as Obama has.
Scientists estimate that the probability of a magnitude 6.0 or larger earthquake occurring in this seismic zone within any 50 year period is 25% to 40%. Such an earthquake could hit the Mississippi Valley at any time.
http://www.cusec.org/earthquake-information/new-madrid-seismic-zone.html