That is the sort of local event that is so large, a population, without much news of the world, might consider it the end or be inspired to write about it as if it were a divine message or divine retribution for sin.The flood sediment (footprint) is 150 miles wide and 350 miles to the south. They call that the Fertile Crescent. It flooded many, many times.. That's how the Delta south of Basra came to be.
They don't want science or common sense.. They want fantastic, supernatural children's tales.