If you are going to take earthquakes into consideration, you must also enter global warming into the equation, in which case Florida would submerge as would a great deal of the Southeastern United States, and quite a few miles of coastal regions elsewhere….everywhere… Factor in the displacement volume of California's diagonal descent into the Pacific, the effect it will have on sea level - in addition to the glacial meltwater from Global Warming - we could see some states disappear entirely as the topography changes… also - the California Rift could trigger the New Madrid fault to become actively volcanic - devastating the Midwestern states, and the grain belt, and effectively rerouting travel patterns north or south of the event.