[arethuza]

There are also fairly epic floods or lands lost to floods in fairly recent times (i.e. since the last ice age):

http://en.wikipedia.org/wiki/Doggerland

Not to mention a large tsunami in an area where you really wouldn't expect it:

http://en.wikipedia.org/wiki/Storegga_Slide

Part of me sort of wishes there was some kind of record of these events - even if it was a bit mangled.

[lurkinggrue]

I'll just leave this here:

http://en.wikipedia.org/wiki/Epic_of_Gilgamesh