Correlation of the dynamic soil parameters obtained from the seismic refraction method and microtremor measurements

Determining the behavior characteristics of the site, which display during earthquake, is very important before the building of new constructions. If we have the dynamic parameters of the site, we can procure a lot more secure construction, with this, to know the site dynamic properties of present constructions, ensures us more advantage for the crisis management after earthquake. Site dynamic parameters can be assigned with separate geophysical methods. İn this study, the seismic refraction, microtremor and MASW (Multichannel Analyses of Surface Waves) methods were used. The site dynamic parameters obtained from the different geophysical methods were correlated. Additionally, it was also investigated whether the accordance among them was provided or not in this study and found out to be important differences among them. In the study area, at 58 spot Microtremor, at 15 spot masw data collated and correlated with the seismic refraction data which collated within the doctoral study (Kıncal, 2004). Additionally, with the dynamic behavior analyses program, using Izmir 1977 earthquake, dynamic behavior in the area during the earthquake were correlated. In this study, to analyze microtremor data, Nakamura spectral ratio technique was used due to its simplicity and accuracy of application and evaluation. The contour maps have draw using the obtained dynamic soil parameters and the aerial variation of the parameters observed.