Ancient Seismic Activity: Gibralter & Sicily

Greetings:

I've been wondering about the geologic history of the areas of the
Strait of Gibralter and the southern tip of Sicily.

Can anyone point me to current scientific theory that might lend
substantiation to the claim that, perhaps over 33,800 years ago,
violent volcanic activity in the area surrounding the Mediterranean
Sea might have caused the breaking up of the Gibralter land connection
to Africa, the consequent submergence of the Sicilian land bridge to
Africa, the subsequent sinking of the eastern floor of the
Mediterranean Sea, and the up-thrust of the Mediterranean coast of
Syria?

Sincerely,
Ramon Barbosa