Abstract: A system and method comprising an expert system and knowledge base that stores expert knowledge and parameters that characterize structures such as buildings and their occupants, evaluates the effects of a natural and other triggering events, such as earthquakes, on the structures and occupants. The analysis is based upon data which characterize the triggering event, and parameters which characterize the structure, its locale, its environment, and the occupants. The effect of the triggering event is analyzed using the expert knowledge and characterizing data and parameters, and communicated to occupants and to others with recommendations of actions which can minimize damage and injury. The method and system takes into account natural and man-made objects in the vicinity of the structure, as well as the occurrence of other triggering events which could also affect the structure or occupants.