I'm not aware that there is a single event that can be attributed to the flood story. There is every probability there are a series of floods to account for the recollection the world over as well as the Middle East. The Arabian sea it self is believed to have been cultivated land which his map allows for.
It should be kept in mind that the planet with so much water ice would have been a considerably drier place. I haven't seen a model for what the Mediterranean, North Africa and Middle East would have been. There is so much unstudied evidence coming to light that gaining a clear picture on how this tumultuous heart land spun the future prospects of the people living there.