2013 Fiscal Year Final Research Report
Unified three-dimensional numerical simulation of seismic and tsunami wave propagation
| Project/Area Number |
23740333
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Solid earth and planetary physics
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| Research Institution | The University of Tokyo |
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Principal Investigator |
MAEDA Takuto 東京大学, 地震研究所, 助教 (90435579)
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| Project Period (FY) |
2011 – 2013
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| Keywords | シミュレーション / 地震波 / 津波 / 波動伝播 |
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| Research Abstract |
We developed a unified method on synthesizing seismic- and tsunami- wave propagation by single set of equation of motion. The original method and numerical code is further extended to the three-dimensional space having realistic topography, bathymetry and inhomogeneous medium structure. This method takes constant gravity force into account to the elastic equation of motion, and solves it under the equilibrium state by using finite difference method. We succeeded in developing fully parallelized numerical code that is suitable to the large-scale parallel numerical simulation with supercomputers. The method is applied to the 2011 Pacific Coast of Tohoku Earthquake (M9). The simulation result successfully reproduced the feature of observed seismic/tsunami records observed at ocean-bottom tsunamater and inland seismic stations.
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[Presentation] A unified numerical simulation of seismic ground motion, ocean acoustics, coseismic deformations and tsunamis of 2011 Tohoku earthquake2011
Author(s)
Maeda, T., T. Furumura , S. Noguchi, S. Takemura, K. Iwai, S.-J. Lee, S. Sakai, and M. Shinohara
Organizer
AGU Fall meeting 2011
Place of Presentation
Moscone Center (San Francisco, California, USA)
Year and Date
2011-12-05
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