comprehensive probabilistic and deterministic seismic hazard analysis of arak city

comprehensive probabilistic and deterministic seismic hazard analysis of arak city

absence of a comprehensive seismic analysis and poor structural control systems in developing countries is the main reasons which cause countless casualties after the occurrence of an earthquake. the main purpose of the presented research is to conduct a full comprehensive seismic evaluation on one of the iranian cities located in a region with a high rate of earthquake occurrence.

the analysis is conducted both deterministically and probabilistically in order to consider the uncertainties of occurrence. a large database of the earthquakes that occurred in a circle with a radius of 100 kilometers around the arak city in iran is gathered.

the records that are used are started from the beginning of the 19th century until the present time. all faults around the city are modeled and the campbell & bozorgnia and abrahamson & silva attenuation relation were used for evaluation of pga in the center of the city. finally, a new gutenberg-richter model is developed for the region and specifically for the arak city. it is concluded that the code spectrum works properly for the arak city; however, it underestimate the intensity in some cities like tehran, and tabriz.