TY - JOUR ID - 106052 TI - Strong Ground Motion Simulation of the 2017 Sefid-Sang Earthquake in Khorasan-Razavi, NE Iran JO - Advance Researches in Civil Engineering JA - ARCE LA - en SN - AU - Mohammadi, Hesaneh AU - Sedghi, Maryam AU - Gheitanchi, Mohammad Reza AD - PhD Candidate, Geophysics Department, Tehran North Branch, Islamic Azad University, Tehran, Iran AD - senior expert in research, Iranian Red Crescent Society (IRCS), Tehran, Iran AD - Professor, Institute of Geophysics, University of Tehran, Tehran, Iran Y1 - 2020 PY - 2020 VL - 2 IS - 1 SP - 79 EP - 91 KW - Strong ground motion KW - Source Parameters KW - Rupture characteristics KW - Empirical Green Function KW - stochastic finite-fault method DO - 10.30469/arce.2020.106052 N2 - On April 5, 2017, an earthquake with moment magnitude of 6.1 occurred Sefid-Sang area about 80 km southeast of Mashhad city in Khorasan-e-Razavi province. In this study, to estimate source parameters and rupture characteristics of the earthquake, the Empirical Green Function (EGF) method and the stochastic finite-fault (SFF) technique were used for strong ground motion simulation. Then the observed records and the simulated graphs by these two methods, were compared. To simulate the earthquake by EGF method, an aftershock with moment magnitude of 4.8 was used as the empirical Green function. The size of the main fault caused by the event was about 10 km in length and 8 km in width. The duration of the rupture in this event was about 18 seconds. The estimated fault plane solution shows reverse mechanism with strike-slip component. Strike, dip and rake of causative fault of the earthquake were determined as 311, 55 and 117 degrees. In addition, the stress drop in this event was calculated to be about 8 bars. UR - https://www.arce.ir/article_106052.html L1 - https://www.arce.ir/article_106052_22f3c7d01aaf1c0b2b3252fd18cf81c9.pdf ER -