5:15 PM - 6:30 PM
[SSS25-P30] Improvement of shallow subsurface structure models based on miniature and irregular array microtremor observations in Kanto Area
Keywords:shallow subsurface structure, velocity structure, miniature array, microtremor
In this study, we focus on advancement of shallow subsurface S-wave velocity structures, especially around engineering bedrocks (Vs300~500m/s layers), in Kanto Area, including Tokyo. We have conducted miniature and irregular array observations at a great deal of sites in Kanto plane since last year. By using these observation data, 1-D and 2-D shallow subsurface velocity structures are estimated. Then, based on these models, the initial geological models are verified and modified if necessary.