sasan motaghed; amin nakhlian; lotfolla emadali; nasrolla eftekhari; heshmatalla mahmoudian
Abstract
In this study, an integrated geographic information system (GIS) has been used to assess the seismic hazard in the southwestern region of Iran. In data preparing, the important factors in earthquake hazard were identified and relevant thematic data layers including digital elevation model (DEM), the ...
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In this study, an integrated geographic information system (GIS) has been used to assess the seismic hazard in the southwestern region of Iran. In data preparing, the important factors in earthquake hazard were identified and relevant thematic data layers including digital elevation model (DEM), the focus of past earthquakes and active faults were created for the region. Numerical ranking based on AHP has been used to weight and rank effective parameters in seismic hazard assessment for spatial data analysis using GIS. Using the weighted arithmetic overlay method, an EPI map was prepared for an area of 400 × 400 square kilometers in the southwest of Iran, and the area was divided into 4 relative hazard classes, i.e., high, medium, low, and very low classes. Finally, its maps are provided. For more transparent, the hazard values of the cities of Khuzestan province is given in comparison with the standard 2800 earthquake hazard map. The comparison of the results shows that the standard 2800 zoning in this area is reliable. Also, based on the results, the use of the EPI, as a non-ergodic hazard metric, is suggested in areas with a rich data background.
