2024-03-28T12:11:33Z
https://repository.dl.itc.u-tokyo.ac.jp/oai
oai:repository.dl.itc.u-tokyo.ac.jp:00032877
2022-12-19T04:08:47Z
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1976年中国寧河地震のシミュレーション解析
Strong Ground Motion Simulation of the 1976 Ninghe, China Earthquake
袁, 一凡
128181
吉沢, 静代
128182
大沢, 胖
128183
453
application/pdf
The strong ground motions observed during the Nov. 15, 1976 Ninghe, China earthquake (M=6.9) have been simulated by the finite difference method. By analyzing observed accelerograms, an acceleration source function of impulsive shape is assumed for synthesizing observed accelerograms. The effects of lateral heterogeneity of ground structures are taken into account in this study. The simulated results show that the energy was released in a small region surrounding the hypocenter in the Ninghe earthquake, the strike slip was predominant on the fault and the maximum acceleration might be over Ig at the hypocenter. Even with a relatively simple rupture process, ground motions become complicated due to reflection and scattering of seismic waves, especially in laterally heterogeneous ground structure.
departmental bulletin paper
東京大学地震研究所
1986-08-04
application/pdf
東京大學地震研究所彙報 = Bulletin of the Earthquake Research Institute, University of Tokyo
1
61
97
127
AN00162258
00408972
https://repository.dl.itc.u-tokyo.ac.jp/record/32877/files/ji0611003.pdf
eng