Abstract
In this study, subsurface structures of strong ground motion observation sites in Tottori Prefecture were determined to obtain information for prediction of earthquake strong ground motion at each sites. S-wave velocity models and predominant period of H/V were obtained using array microtremor and observation 3-components single-site microtremor observations data at 43 sites. PS-P times with receiver functions were calculated using acceleration data at observation sites. Subsurface structure models were reconstructed based on the results of receiver functions and geophysical exploration. Estimation of site amplification effects by spectral inversion technique and evaluation of amplification factors of earthquake indices were carried out. We found that characteristics of amplification factors of site amplification effects and tendency of amplification factor at observation site in Tottori prefecture. In addition, we checked the relationship between site effects and transfer functions of SH-wave, average of S-wave velocities, H/V of microtremor.
