Determination of site characteristics with the microtremor method at the Karadeniz Technical University campus

Microtremor method used for engineering seismology is very important for determining of dynamic ground parameters and its variations. Method based on frequency of horizontal and vertical component microtremor records provides to quick and economical estimation of dynamic ground parameters. Most important advantage of Nakamura method defined as single station method isn?t required reference point and it can be applied easily in the area with low seismic density and without base rock. In this study, Nakamura (H/V) method has been applied to microtremor records taken with CMG-6TD three component borad band velocity seismometers in each profile with the aim of determining ground predominant period and magnification parameters of KTU campus area. The ground predominant period, ground predominant frequency and magnification values are determined for each measurement point in the study area. Maps of magnification, predominant frequency and ground classification (Z1, Z3, Z4) according to the predominant period are created by derived values. S-wave velocity data found by prior seismic refraction measurements in the same area are compared with results of mcirotremor measurement.The ground predominant period and magnification values belongs to microtremor measurement point are support to each other and measurement point is substantially describe to the ground characteristic for global of KTU campus area.