[Strategerist]

St. Louis/New Madrid.

Actually slightly overhyped I suspect (not that there isn't a danger of a Mag 6-7 quake somewhere in the area in the next 40 years) relative to other areas with more risk, like Salt Lake City.

[DuncanWaring]

Salt Lake City - I spent the bulk of the '60s there, and remember a few small quakes around 1964 or so.

I wonder how much of a Wasatch Fault quake Glen Canyon Dam and Hoover Dam can survive.