Zoning of Earthquake Risk Zones in Kermanshah County Using FAHP Model

Earthquake is one of the natural disasters on earth that causes a lot of economic and human losses every year. Although this natural hazard cannot be predicted with current science, use of technology and technological progress, makes it possible to plan properly to reduce damages. These measures are the result of recognizing and examining the potential areas of the earth where there is a possibility of earthquake risk, and by taking advantage of it and analyzing them, the necessary preparation for earthquake prevention or control can be obtained. In this purpose, the geographic information system plays a significant role in the integration of related maps. In this research, the impact of various factors on the occurrence of earthquakes and the zoning of earthquake risk in Kermanshah county has been investigated. In order to achieve this, the fuzzy hierarchical analysis method was used to obtain the weight of each of the studied criteria and the degree of their impact, and by obtaining the small values of the weight of each criterion, a fuzzy weight map of the criteria was prepared and finally a risk map. The acceptability of different areas of Kermanshah county has been obtained. The results show that 15.6% of Kermanshah county is at risk of earthquake with "high" degree and 16.7% with "very high" degree. Also, 18.2 percent of the villages in Kermanshah county are at risk of earthquake with "very high" degree and 17.7 percent with "high" degree, and in the urban area of Kermanshah, the risk of earthquake with "very high" degree is equal to 6.3%. And it covers 18.1% of the area of Kermanshah city with "high" grade.