“…The HVSR method generally provides reliable estimates of resonance frequency despite of its inadequacy in estimating amplification [Bard, 1999;Lermo and Chavez-Garcia, 1994], while SSR method is considered as the reliable method in determining the effects of local site conditions [Molnar and Cassidy, 2006;Yalcinkaya and Alptekin, 2005]. Another important parameter for the site effects, in the context of seismic hazard assessment, is the thickness of a sediment fill in sedimentary areas [Hinzen et al, 2004]. Recent studies, based on relationship between the main peak frequency (fr in Hz) of a given soil, its thickness (h in meter) and the average shear velocity (Vs in m/s), have demonstrated the possibility to establish a direct functional relationship between the frequency of resonance and depth to bedrock, without knowing shear velocity [Ibs-von Seht and Wohlenberg, 1999;Kanli et al, 2008;Tun et al, 2016].…”