Truly Geological Events are rare...
But the recent Tsunami was a genuine once in 500 years experience.
Amazingly there is now speculation that Atlantis was once real, and was destroyed in a Tsunami.
And the "Global" occurance of "Flood Myths" in nearly every Indo-European culture was undoubtedly inspired by some Tsunami event....
Few of us could have even imagined this type of destruction had we not seen it with our own eyes last year.
Thus, the Biblical and other notions of "global destruction" by flood seems more real now than before the recent catastrophe. How many Gods and Monsters are yet to be explained?