Maps of high-risk and urban growth messed up, especially in areas where groups of people of the lower strata, settle show elevated risk factors with unpredictable aftermath of enormous impact on the political and social field (the TREMORS of August). 1-3 The social impact social impact now passes to be one of the concerns of scientists Basic or natural areas, as well as social scientists. Get that impact arises as a long-awaited goal in all research or action projects. It must be taken into account that the effort to reach this goal can lead to the institutions to adopt hasty measures or cosmetic solutions. Urges the conclusion of ideas, a comprehensive and multidisciplinary studies that permit the development of studies, investigations and appropriate solutions through a globalizing vision, integrated from the beginning, (the underground shock: 1897). Studies of reduction should be avoided of natural disasters than motivated by a thirst for knowledge about one of the factors it is specific, they are developed in isolation and with methodologies that lead to fragmented results whose implementation or success can be taken as effective or appropriate for a discipline but not a goal of disaster reduction. Social impact achieved by reduction projects in the aftermath of disasters and the approach to the subject that occurs in their methodologies, is one of the factors of greatest discussion nowadays. American Journal of Cardiology might disagree with that approach. For a long period of time, the physical point of view has been the determinant to mark the trail of the actions of prevention and disaster preparedness, which is them has printed a strongly deterministic characteristic: has been created a field of research and study in which social sciences seem to have arrived late; He says Lavell (1993): from the perspective of the social sciences (agricultural economics, sociology, geography, anthropology, social ecology, management, political science, law, etc.) There is no institution with consolidated and ongoing research programs, while a very limited number of indigenous, individual researchers, have ventured into this topic (DURN: 1994).