Ok, there are many issues I have with this whole premise of a tsunamai causing the "great" flood, but my main one is this.
Didn't you recently state that this supposed flood you are postulating could have easily lasted a year?
So a tsunamai comes up the tigris and euphrates rivers floods the whole area and lasts over one year? Interesting. Wild and fanciful, but interesting in a nutball sort of way.
It is truly amazing the contortions you are willing to go through in order to justify belief.
Facts don't lie or have an agenda. Facts are just facts