Must have been heck on the ancients. 15 feet of water across the coastal cities would change the social and political character of the region -- I wonder how many nascent civilizations were wiped out before they had a chance to grow and expand.
Uh oh, that’s family territory.
Well, it now appears that a tsunami wiped out the Minoans on Crete, around 1450 B.C. That disaster may have even started the Atlantis myth.