Estimation of Seismicity Parameters and Hazard Assessment of Maragheh City, Iran

Authors : Shahrzad NİKOOBAKHT, Mohammad AZARAFZA, Homayon SAFAEİ

Pages : 0-0

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Publication Date : 2018-05-30

Article Type : Research Paper

Abstract :This paper endeavours to assess seismicity and seismical engineering parameters and zonation of Maragheh city by using the NGA modelling. A definitive objective of this system is giving seismicity parameters which evaluated by in NGA modelling, directly used to hazard assessment and building design where utilized forMaragheh city. In order to hazard risk assessment for the city, the Gutenberg-Richter and kijko - sellevoll methods after NGA is applied. As indicated by the figured outcomes, seismic coefficients of Gutenberg-Richter connection are insert ignore into journalissuearticles values(Log Nc=3.692-0.501Mw); a=3.692, b=0.501 by R2=0.98 and kijko - sellevoll propelled strategy are Beta =1.15±0.08 insert ignore into journalissuearticles values(b=0.50±0.03); and Lambda=2.70±0.041 then Mmax=9.70±0.52 for the city. Finally, in light of NGA models, the seismicity parameters for Maragheh city are PGV=27.3 insert ignore into journalissuearticles values(cm/sec);, PGD=2.2 insert ignore into journalissuearticles values(cm); and PGA=0.19 insert ignore into journalissuearticles values(g);. According to the assessment results of seismicity the Tabriz and Urmia- Zarinehrud faults are main rule on seismical activity and the city is located in most hazardous zone in Iran.
Keywords : Seismicity, Hazard Assessment, Maragheh City, PGA, NGA