I think that perhaps the number of trailer parks in the south may be larger than in the St Louis area... There is no protection for these residences.

Next Fall we're moving to Tucson AZ and I was told it was seismically inactive... hah! A fault that runs up from Mexico caused a 4.5 quake last year and that fault runs right under Tucson. Danger is all around us.... LOL

I think I was 22 when I felt a 3.0 quake in Chicago.... its bound to happen.