Seismic Hazard Analysis and Obtaining Peak Ground Acceleration for Arak Region, Iran

This study has carried out seismic hazard analysis and Peak Ground Acceleration (PGA) indifferent regions of Arak City located in Markazi province of Iran. Historical andinstrumental earthquakes data sets from 4 B.C. to 2007 were used, and seismic sources up to 200km-radius surrounding Arak City were considered in modeling. In addition, seismicity parameters were calculated by kijko (2000), and three Attenuation relationships we used with Logic Tree method. Analysis was conducted for 17 × 12 grid points over Arak region and provance area with SEISRISK III (1987) software. Results were shown by PGA maps for four hazard levels.