Zagros is very active in terms of seismicity and the most seismic region of Iran. A large earthquake occurred in Sarpolzahab region on 1th April 1150 Mw 6.1. The information from previous earthquakes is important for where there is no sensor. Also, this information is import to identify the risk of earthquakes, complete the earthquake catalog, better understand the Zagros area and be better prepared for this natural phenomenon; In this research, the simulation of the mentioned historic earthquake using one of the 7.3 magnitude seismic aftershocks has been conducted by empirical green’s function method. For this research, the data collected from the temporary network of the International Institute of Seismology and Earthquake Engineering. The simulation results show that there is an acceptable similarity between the waveform and the simulated and observed Fourier amplitude spectrum for the desired aftershock at the stations. Also, the error shows an acceptable value for the estimation of strong motion parameters of the historic earthquake.