Why worry about Florida? The entire East coast up the the height of the wave - what ever that height turns out to be - will be obliterated - in the sense that everything will be scowered down to bedrock.
See Lituya Bay, Alaska for what the damage will look like. Two video included.
You can't surf your way outta this one.
Please see 38, and don’t be hysterical. Comparing the 360* spread of a single point event in the open ocean to the channelized and focused energy in a BAY in Alaska is just plain foolish.
Now, if you could first build a giant “Grand Canyon” across the Atlantic, keeping all of the wave energy in that channel and aimed at Florida, then I’d agree we have a problem.
But I don’t see a “Grand Canyon” being created with walls higher than the surface of the Atlantic anytime soon.
Folks: Energy dissipates rapidly when it spreads out over 360* and thousands of miles! See 39 for a few basic numbers.