Synthazards are synthetic fabrications of natural hazards which forms are generated by various algorithms and machines. They are manufactured by using different rapid prototyping techniques, laser cutouts, and cnc. The following natural hazards are prototyped: earthquake, drought, whirlpool, lightning, volcano, tsunami, tornado and lava. The objects are focusing on formal aspects of these phenomena. What is apparent in fabrications is a unique synthetic form, which is given by algorithms and inscribed in the language of prototyping machines.