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| | Abstract | | When the earthquake occurred, surface wave were generated and propagated influenced by sedimentary layers. I focused on Love wave (T=7-8s) in Kanto basin during the 2011 Mt. Fuji Region earthquake (Mj6.4), and tried to understand the validity and problems of the past structure model based on the reproducibility of the propagation characteristic (Spring Meeting, 2013). To improve the reproducibility, I thought out a new waveform inversion method for estimating 2D sedimentary layers using Love wave. To investigate the effectiveness and accuracy of this method, I applied to the result of the 3D ground motion simulation of the 2011 Mt.Fuji Region Earthquake. As a result of this numerical experiment, the conspicuous difference was found around a steep slope by the difference which approximated the 3D sedimentary layers structure by 2D. But, on the whole, the answered and the estimated 2D sedimentary layers were adjusted well, and I found that it's possible to grasp the 2D characteristic distribution using this method. |
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