2010 Fiscal Year Final Research Report
Establishment of strong ground motion prediction methodology based on generation of extreme strong motions
| Project/Area Number |
20310105
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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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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| Co-Investigator(Kenkyū-buntansha) |
ASANO Kimiyuki 京都大学, 防災研究所, 助教 (80452324)
TOBITA Tetsuo 京都大学, 防災研究所, 助教 (00346058)
SEKIGUCHI Haruko 京都大学, 防災研究所, 准教授 (20357320)
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| Project Period (FY) |
2008 – 2010
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| Keywords | 極大地震動 / 2008年岩手・宮城地震 / 震源モデリング / 震源インバージョン / 最大加速度 |
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| Research Abstract |
Effect of source and site on generation of extreme ground motions are studied. The area with higher stress drop or higher slip velocity on the source fault and rupture propagation controlled near-source strong ground motions. Non-linear site response affected extreme ground motion generation at the Anamizu station during the 2007 Noto-Hanto earthquake and the Ichinoseki-Nishi station during the 2008 Iwate-Miyagi earthquake. Depth dependence of stress drop on SMGA are found and it could be an useful parameter of the source model for prediction of strong ground motions.
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