SEGJ Technical Conference

Examination of the subsurface structure classification based on microtremor observation

Abstract In this study, we considered the local classification which observed cohesive soil layer thickness in the Kanto district. We used microtremor observation, in order to classify. We propose an integrative interpretation of H/V section, together with a pseudo shear-wave velocity section (Ling et al., 2003,Haraguchi, 2010), obtainable by adopting miniature arrays for phase velocities and single-point observations for H/V spectra.Miniature arrays for the CCA method have high mobility and high horizontal resolution owing to the array size. We are planning to increase application examples and to validate the usefulness of the method proposed above. A seismometer JU-215, which was co-developed by the NIED and Hakusan Co. (Senna et al., 2006), In this study, showing analysis results of the data obtained using JU215 (at Tsukuba, Kashiwa, Urayasu, Itako, ... etc), we will discuss the usefulness and problems of the proposed method.