2012 Fiscal Year Final Research Report
Generation Process of Strong Ground Motion Considering Three-Dimensioal Source Fault Geometry and Underground Structure
| Project/Area Number |
22710172
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Natural disaster science
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| Research Institution | Kyoto University |
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Principal Investigator |
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| Project Period (FY) |
2010 – 2012
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| Keywords | 地震 / 強震動 / 震源破壊過程 / 震源断層 / 強震動生成領域 / 三次元地下構造 |
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| Research Abstract |
This project focuses on two important “three-dimensional effects” related to strong ground motion generation during earthquakes: the three-dimensional geometry of the source fault and the three-dimensional velocity structure model. New kinematic source inversion analysis method isdeveloped to estimate the spatiotemporal slip distribution together with unknown fault geometry from observed strong motion records. Theoretical Green’s functions simulated from the present nation-wide three-dimensional crustal velocity structure models are compared with the observed inter-station Green’s functions deduced by the seismic interferometry technique. The source model composed of four Strong Motion Generation Areas of the 2011 Tohoku earthquake is estimated considering the three-dimensional geometry of the plate interface.
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Research Products
(18 results)
