You’ll note that nobody gets particularly excited about natural disasters where few or no people live. That is why the great New Madrid earthquakes of 1812 (four quakes, about 7.5 each), while they were enormous and devastating to the land, just disturbed a handful of settlers and Indians.
But if they happened today, much of the city of Memphis would be swallowed by ground liquification, most buildings in a 50,000 square mile area would have been knocked down, and most buildings in a 1m square mile area would have mild, moderate or severe damage. Many roads would be destroyed, dams and levees broken, large amounts of flooding from the Mississippi. And heaven only knows how many people would be killed. Likely in the tens or hundreds of thousands.
And none of it would have anything to do with MMGW, though it would be a disaster of unparalleled proportions.
Yeah, out here in KY, I’ve given thought to the New Madrid fault. There some dams that would wreck havoc if 1812 repeated itself. Land between the lakes, Lake Cumberland. Be like something out of an Irwin Allen movie.