How long would it take you to get high enough

[Paul]

Have boat, will float.

You really don't wanna be in a boat if a Tsunami hits

Alternative is swimming and the water's cold.
Whats the guess-timate of even an hours notice by TPTB that it's going to get wet? Probably a little less than not a lot.

Seriously though, I've got access to a nice little open sea lift raft with a CO2 inflate which has got to be better than trying to outrun a Tsunami along with everyone else on the roads when I've got a 100 km (60 mile) drive to get anyway close to 300m (1000 feet) ASL.