Feasibility Analysis of Vulnerabilities to Earthquakes in Sanandaj City Using Ordered Weighted Average (OWA) Model

Iran is Located in the center of earthquake zones. Destructive earthquakes in recent decades has shown that all parts of the country are in danger earthquake. The danger is a serious threat for the development of urban communities. By identifying the variables and zoning the areas, it is possible to reduce the earthquake vulnerabilities. This article is aimed at zoning the vulnerability rate caused by earthquake in the city of Sanandaj based on effective variables. In this regard, the variable layers of natural- physical and human- social parameters were prepared and provided in a raster format. The ordered weighted average model was used by risk-averse and risk-taking methods in order to determine and to classify the vulnerability rate of the city accurately and in more details. The results showed that the north and the northwest parts of the city with the physical and human origin have a high vulnerability while the southern part of the city with natural origin has lower degree of vulnerability. Accordingly, it is inferred that by limiting the development from the south and the change to physical and social characteristics in the north and the northwest parts, the rate of earthquake vulnerability would reduce.