Guess that would explain the chariots at the bottom of the Red Sea.
Interestingly enough, it turns out that the original text did not say "Red Sea", that was a mis-translation. It said, "Sea of Reeds".
The 'Sea of Reeds' is a shallow marshy area on the coast.
So the theory goes: Thera blows up, sending massive tidal waves across the Mediterranean. Before a tidal wave comes on shore, the water receeds. In one case in Hawaii, the water receeded nearly a mile out. A school teacher, not knowing what was coming, took her class down on to the dry sea bed looking for shells . . .
This seems to be a clear description of what happened in the Exodus story, to me. Water receeds, the Jews walk across, army follows, the tidal wave crashes into them.
Incidentally, the earthquakes and tidal waves also destroyed the Mycenean world -- I believe that the story of the Trojan Horse and the Odysey, also, are a historical record of this event filtered thru the imaginations of many writers.