Ground Motion Prediction for the Next Generation
| Project/Area Number |
15H02989
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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 / Disaster prevention science
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| Research Institution | The University of Tokyo |
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Principal Investigator |
MIYAKE Hiroe 東京大学, 大学院情報学環・学際情報学府, 准教授 (90401265)
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| Co-Investigator(Kenkyū-buntansha) |
加瀬 祐子 国立研究開発法人産業技術総合研究所, 活断層・火山研究部門, 主任研究員 (90415654)
松島 信一 京都大学, 防災研究所, 教授 (30393565)
関口 春子 京都大学, 防災研究所, 准教授 (20357320)
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2018)
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| Budget Amount *help |
¥13,260,000 (Direct Cost: ¥10,200,000、Indirect Cost: ¥3,060,000)
Fiscal Year 2017: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2016: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2015: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
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| Keywords | 地震 / 自然現象観測・予測 / モデル化 / シミュレーション / 解析・評価 / 強震動 / 震源 / ハザード |
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| Outline of Final Research Achievements |
Based on the lessons learned from the 1995 Kobe earthquake, we performed scenario-type seismic hazard assessment by empirical, kinematic, pseudo-dynamic, and dynamic source modeling to validate the quantitative relationship between source variability and simulated ground motion variability. Our study indicates that physics-based dynamic rupture modeling have an enough potential to simulate extreme ground motions over the classical empirical approach.
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| Academic Significance and Societal Importance of the Research Achievements |
東日本大震災以降、在り方が論じられてきた地震ハザード評価について、従来の枠組みにとらわれず、想定外の地震動を震源の物理に基づいてシミュレーションする手法を研究した。その結果、従来よりも多様な地震動が計算されるものの、これらの震源の物理やパラメータの拘束に関する研究がより一層重要であることが分かった。また、オープンデータを意識して、国際的な計算プラットフォームに解析手法を実装することに成功した。
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Report
(4 results)
Research Products
(47 results)
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[Journal Article] Widespread ground motion distribution caused by rupture directivity during the 2015 Gorkha, Nepal earthquake2016
Author(s)
Koketsu, K., H. Miyake., Y. Guo, H. Kobayashi, T. Masuda, S. Davuluri, M. Bhattarai, L. B. Adhikari, and S. N. Sapkota
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Journal Title
Scientific Reports
Volume: 6
Issue: 1
Pages: 28536-28536
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Joint inversion of teleseismic, geodetic, and near-field waveform datasets for rupture process of the 2015 Gorkha, Nepal, earthquake2016
Author(s)
Kobayashi, H., K. Koketsu, H. Miyake, N. Takai, M. Shigefuji, M. Bhattarai, and S. N. Sapkota
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Journal Title
Earth Planets Space
Volume: 68
Issue: 1
Pages: 66-66
DOI
NAID
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Presentation] 不均質震源モデル2017
Author(s)
関口春子
Organizer
京都大学防災研究所研究発表講演会
Place of Presentation
京都大学宇治おうばくプラザ（京都府宇治市）
Year and Date
2017-02-23
Related Report
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