We should not only take the scientific side into consideration in dealing with catastrophes but also the emotional one, the parapsychologocal one, the sociological one and the religious one. By mapping the endangered zones, by alarming before the event and by protevtive measures only, the problems will not be solved. If a disaster exceeds the previous and common order of magnitude and the protective measures don't suffice any longer, extensive knowledge about the kind of the hazard and the possibilities of immeadiate mastering is necessary to have a chances of survival. However, extensice knowledge is also necessary in case of a catastorophe to be able to help affected persons or survivors. It is a duty to stop learning and improving all possibilities of disaster mitigation.