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The Earthquake Disaster Risk Index (EDRI) is a composite index that will allow direct comparison of the relative overall earthquake disaster risk of cities worldwide, and will describe the relative contributions of various factors to that overall risk. The basic development of the EDRI involves (1) creating a conceptual framework of all the factors that contribute to earthquake disaster risk—geological, engineering, economic, social, political, and cultural factors; (2) identifying simple, measurable indicators to represent each of the factors in the framework; (3) combining the indicators mathematically into the composite EDRI; and (4) presenting the results in an easily understandable form. The index is being created using a holistic, multidisciplinary approach that aims to synthesize knowledge of urban earthquake disaster risk into a concise, easily accessible summary that is currently unavailable from any other source.
Rachel A. Davidson (Thu,) studied this question.