SEGJ Technical Conference

ESTIMATION OF VELOCITY STRUCTURE AND MODELING THE SUBSURFACE STRUCTURE OF KANTO AREA BASED ON MICROTREMOR ARRAY OBSERVATION

Abstract Sophisticated predictions of strong ground motion are vital when constructing structure models that enable us to evaluate broadband ground motion features. Such models should integrate subsurface structure models for strata shallower than engineering bedrock and deep structure models for strata even deeper. Both such models used to be separately modeled separately so that observation data could be reproduced. In this study, we have created a subsurface structure model applicable from seismic bedrock to ground surface for Kanto area in attempts to sophisticate subsurface structure models. This paper describes how we created these models and reviews our results.