2010 Fiscal Year Final Research Report
Seismic waveform simulation in oceanic area
| Project/Area Number |
21740334
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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 |
Solid earth and planetary physics
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| Research Institution | Japan Agency for Marine-Earth Science and Technology |
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Principal Investigator |
NAKAMURA Takeshi Japan Agency for Marine-Earth Science and Technology, 地震津波・防災研究プロジェクト, 技術研究副主任 (40435847)
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| Project Period (FY) |
2009 – 2010
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| Keywords | 地震波シミュレーション / 地震波動 / 波動伝播 / 差分法 / FDM / 地下構造モデル / 海底観測 |
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| Research Abstract |
We proposed a responsible FDM solution in order to compute seismic wave propagation in models with both land and ocean-bottom topographies. We simulated 3D seismic wave propagation around the source region of the 2009 Suruga Bay earthquake employing the FDM code and the constructed structure model. The overall features of the synthetic waveforms fit well with the observed ones. We also found that the high order finite difference may cause the numerical error and be unsuitable to apply the calculation for a complex bathymetric structure.
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