The narrative material of a Deluge can be found in many, especially very old, cultures: in the Ancient Orient and in Greek-Roman antiquity, but also among the Celts, the Germanic peoples, in India and China as well as among the Indian cultures of North America.
The description of the growing of the waters follows a three-step increase: first the place of the ark is under water, then the ark is lifted, and finally all high mountains are covered with water - the flood is omnipresent. This is followed by the disappearance of all life in three stages: All life goes under, dies and disappears from the earth.
It is a silent catastrophe: without storm, thunderstorm or earthquake.