LONG-PERIOD GROUND MOTION SIMULATION IN FUKUOKA AREA, JAPAN USING A 3D MODEL BY MICROTREMOR ARRAY EXPLORATIONS AROUND SCHOOL SITES
In this study we carried out long-period ground motion FD simulations during a middle magnitude earthquake using the 3D basin model by some previous studies in the Fukuoka area, Japan. Because the model has some interpolations in space, our purpose is a reconstruction of the model based on the comparison with synthetic records and observed one,and microtremor array explorations of the area around schools including a contribution to science education in near future. Although the long-period modeling indicated a reasonable reproduction of the observed records in generally,some disagreements of the records at the basin site existed. The microtremor explorations leaded some 1D S-wave velocity structures; the basin maximum depth with 2 layers of the Vs 0.8km/s and 1.6km/s is about from 0.6 to 0.8km.These results help us to reconstruct of the 3D basin model, we will be able to prepare the renewed model.
Long-period ground motion 3D basin model FD simulation Fukuoka plain Microtremor array measurement around school sites
Nobuyuki Yamada Hiroaki Yamanaka
Assoc. Professor, Dept. of Science Education, Fukuoka University of Education, Japan Assoc. Professor, Dept. of Environmental Science and Technology, Tokyo Institute of Technology, Japa
国际会议
14th World Conference on Earthquake Engineering(第十四届国际地震工程会议)
北京
英文
2008-10-12(万方平台首次上网日期,不代表论文的发表时间)