SEGJ Technical Conference

Construction of underground structure model in the fault neighborhood(An example of Fukaya fault and Ayasegawa fault).

Abstract We built underground structure model based on the geological feature and the foundation material which are borehole data in South Kanto area. Next the physical properties value (mainly, S-wave velocity) was adjusted by earthquake record and microtremor observation record.Finally, The underground structure model which considered period and amplifying characteristic was made(Senna et al. (2013)).Building of the underground structure model which reflected the in-depth structure is indispensable for further advance of seismic damage assumption. In this study, modeling in the underground structure in the fault neighborhood using microtremor and seismography record was considered about Fukaya and Ayase river fault zone as an active fault area in Kanto area.