Scientific disciplines have their own view on catastrophes. Here, natural scientists, engineers, physicians as well as historians and social scientists define and discuss geo-hazards and associated technical disasters, natural disasters as a business case, medicine and its catastrophes. After war aspects of the Shoah are described with Gershom Sholem ́s Concept of Jewish Totality, and the situation of Displaced Persons in Germany as well as the Nakba for Palestinians related to the happiness of Jews celebrating their new State of Israel. The book also reminds of Hamburg’s Flood Disaster in 1962, the Great East Japan Earthquake in 2011 and other historical catastrophes in Japan, the Lisbon earthquake in 1755 and the Age of Enlightenment, and the eruption of the Tambora in 1815 followed by the “year without summer”.