Estimation of Amplification Spectra for P and SV Waves

In order to evaluate site effects on strong ground motions, the earthquake motions obtained from the vertical array deploying toward the depth of 400m and a part of the satellite array around its array are used. Dividing horizontal and vertical Lime histories into two potions which have primary and secondary arrivals respectively, their amplification spectral ratios between particular two points in and around the vertical array are examined as a problem of incident P- and SV-wave into stratified structures