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2023.01- 現在 京都大学 理学研究科 地球惑星科学専攻 固体地球物理学講座 准教授2019.10 - 2022.12 東京大学 地震研究所 数理系研究部門 助教2016.04 - 2019.09 産業技術総合研究所 地質調査総合センター 活断層・火山研究部門 研究員2015.04 - 2016.03 東京大学 地震研究所 数理系研究部門 特任研究員2012.04 - 2015.03 日本学術振興会 特別研究員(DC1)学歴
2012.04 - 2015.03 京都大学大学院 理学研究科 地球惑星科学専攻 地球物理学分野 博士課程(後期)2010.04 - 2012.03 京都大学大学院 理学研究科 地球惑星科学専攻 地球物理学分野 博士課程(前期)2006.04 - 2010.03 京都大学 理学部学位
2015.03 博士(理学) 京都大学2012.03 修士(理学) 京都大学受賞
2020 2020年度日本地震学会若手学術奨励賞「巨大地震発生機構の理解と予測可能性に関する地震発生サイクルシミュレーション研究」2013 京都大学大学院理学研究科 地球惑星科学専攻 修士論文賞2012 2012年度日本地震学会学生優秀発表賞Publications (Peer-reviewed)
Publications (Peer-reviewed)
[15] Ohtani, M., Kame, N., Kano, M. (2025). Development of an adjoint-based data assimilation method toward predicting SSE evolution: two-step optimization of frictional parameters and initial strength on the fault. Earth Planets, and Space, 77(86). https://doi.org/10.1186/s40623-025-02222-9
[14] Fukushima, R., Kano, M., Hirahara, K.,Ohtani, M., Im, K., & Avouac, J.‐P. (2025). Physics‐informed deep learning for estimating the spatial distribution of frictional parameters in slow slip regions.Journal of Geophysical Research: Solid Earth, 130, e2024JB030256.https://doi.org/10.1029/2024JB030256
[13] Imanishi, K., Ohtani, M., & Uchide, T. (2020) Driving stress and seismotectonic implications of the 2013 Mw5.8 Awaji Island earthquake, southwestern Japan, based on earthquake focal mechanisms before and after the mainshock. Earth, Planets and Space, 72(158). doi: 10.1186/s40623-020-01292-1
[12] Ohtani, M., Nakatani, M., & Kame, N. (2020) Time to seismic failure induced by repeating SSEs in a single-degree-of-freedom spring-slider model. Geophysical Journal International, accepted.
[11] Kimura, M., Kame, N., Watada, S., Ohtani, M., Araya, A., Imanishi, Y., & Ando, M. (2019) Reply to comment by Vallée et al. on “Earthquake-induced prompt gravity signals identified in dense array data in Japan.” Earth, Planets and Space, 71, 120.
[10] Ohtani, M., Kame, N., & Nakatani, M. (2019) Synchronization of megathrust earthquakes to periodic slow slip events in a single-degree-of-freedom spring-slider model. Scientific Reports, 9(1), 8285.
[9] Ohtani, M. & Imanishi, K. (2019) Seismic Potential around the 2018 Hokkaido Eastern Iburi earthquake assessed considering the viscoelastic relaxation. Earth, Planets and Space, 71(1), 57.
[8] Kimura, M., Kame, N., Watada, S., Ohtani, M., Araya, A., Imanishi, Y., & Ando, M.(2019) Earthquake-induced prompt gravity signals identified in data recorded by dense observation arrays in Japan. Earth, Planets and Space, 71(1), 27.
[7] Ohtani, M., Kame, N., & Nakatani, M. (2019) Nucleation of characteristic earthquakes in simulated cycles involving deep huge slow slip events. Journal of Geophysical Research, 124(2), 1822-1837.
[6] Matsushita, R., Imanishi, K., Ohtani, M., Kuwahara, Y., Chen, J., & Ma, S. (2019) Seismic potential around the northeastern edge of the Longmenshan fault zone as inferred from seismological observations. Pure and Applied Geophysics, 1-17.
[5] 今西和俊, 内出崇彦, 大谷真紀子, 松下レイケン, & 中井未里 (2019) 関東地域の地殻内応力マップの作成. 地質調査研究報告,70(3)-1.
[4] Ohtani, M. & Hirahara, K. (2015). Effect of the Earth's surface topography on quasi-dynamic earthquake cycles. Geophysical Journal International, 203(1), 384-398.
[3] Ida, A., Iwashita, T., Ohtani, M., & Hirahara, K. (2015). Improvement of hierarchical matrices with adaptive cross approximation for large-scale simulation. Journal of Information Processing, 23(3), 366-372.
[2] Ohtani, M., Hirahara, K., Hori, T., & Hyodo, M. (2014). Observed change in plate coupling close to the rupture initiation area before the occurrence of the 2011 Tohoku earthquake: Implications from an earthquake cycle model. Geophysical Research Letters, 41(6), 1899-1906.
[1] Ohtani, M., Hirahara, K., Takahashi, Y., Hori, T., Hyodo, M., Nakashima, H., & Iwashita, T. (2011). Fast computation of quasi-dynamic earthquake cycle simulation with Hierarchical Matrices. Procedia Computer Science, 4, 1456-1465.
[14] Fukushima, R., Kano, M., Hirahara, K.,Ohtani, M., Im, K., & Avouac, J.‐P. (2025). Physics‐informed deep learning for estimating the spatial distribution of frictional parameters in slow slip regions.Journal of Geophysical Research: Solid Earth, 130, e2024JB030256.https://doi.org/10.1029/2024JB030256
[13] Imanishi, K., Ohtani, M., & Uchide, T. (2020) Driving stress and seismotectonic implications of the 2013 Mw5.8 Awaji Island earthquake, southwestern Japan, based on earthquake focal mechanisms before and after the mainshock. Earth, Planets and Space, 72(158). doi: 10.1186/s40623-020-01292-1
[12] Ohtani, M., Nakatani, M., & Kame, N. (2020) Time to seismic failure induced by repeating SSEs in a single-degree-of-freedom spring-slider model. Geophysical Journal International, accepted.
[11] Kimura, M., Kame, N., Watada, S., Ohtani, M., Araya, A., Imanishi, Y., & Ando, M. (2019) Reply to comment by Vallée et al. on “Earthquake-induced prompt gravity signals identified in dense array data in Japan.” Earth, Planets and Space, 71, 120.
[10] Ohtani, M., Kame, N., & Nakatani, M. (2019) Synchronization of megathrust earthquakes to periodic slow slip events in a single-degree-of-freedom spring-slider model. Scientific Reports, 9(1), 8285.
[9] Ohtani, M. & Imanishi, K. (2019) Seismic Potential around the 2018 Hokkaido Eastern Iburi earthquake assessed considering the viscoelastic relaxation. Earth, Planets and Space, 71(1), 57.
[8] Kimura, M., Kame, N., Watada, S., Ohtani, M., Araya, A., Imanishi, Y., & Ando, M.(2019) Earthquake-induced prompt gravity signals identified in data recorded by dense observation arrays in Japan. Earth, Planets and Space, 71(1), 27.
[7] Ohtani, M., Kame, N., & Nakatani, M. (2019) Nucleation of characteristic earthquakes in simulated cycles involving deep huge slow slip events. Journal of Geophysical Research, 124(2), 1822-1837.
[6] Matsushita, R., Imanishi, K., Ohtani, M., Kuwahara, Y., Chen, J., & Ma, S. (2019) Seismic potential around the northeastern edge of the Longmenshan fault zone as inferred from seismological observations. Pure and Applied Geophysics, 1-17.
[5] 今西和俊, 内出崇彦, 大谷真紀子, 松下レイケン, & 中井未里 (2019) 関東地域の地殻内応力マップの作成. 地質調査研究報告,70(3)-1.
[4] Ohtani, M. & Hirahara, K. (2015). Effect of the Earth's surface topography on quasi-dynamic earthquake cycles. Geophysical Journal International, 203(1), 384-398.
[3] Ida, A., Iwashita, T., Ohtani, M., & Hirahara, K. (2015). Improvement of hierarchical matrices with adaptive cross approximation for large-scale simulation. Journal of Information Processing, 23(3), 366-372.
[2] Ohtani, M., Hirahara, K., Hori, T., & Hyodo, M. (2014). Observed change in plate coupling close to the rupture initiation area before the occurrence of the 2011 Tohoku earthquake: Implications from an earthquake cycle model. Geophysical Research Letters, 41(6), 1899-1906.
[1] Ohtani, M., Hirahara, K., Takahashi, Y., Hori, T., Hyodo, M., Nakashima, H., & Iwashita, T. (2011). Fast computation of quasi-dynamic earthquake cycle simulation with Hierarchical Matrices. Procedia Computer Science, 4, 1456-1465.
Publications (Others)
Publications (Others)
[3] 大谷真紀子 (2022) 地震発生サイクルシミュレーション研究ー巨大地震発生機構の理解と予測可能性の評価に向けてー. 地震ジャーナル, 73, 16-26. Link
[2] 大谷真紀子, 平原和朗 (2016) H行列法と地震発生サイクルシミュレーション. 計算工学, 21巻4号, 18-21.
[1] 大谷真紀子, 平原和朗 (2015) H行列法を用いた大規模準動的地震発生サイクルシミュレーション. 計算数理工学レビュー, 2015-1, 29-47.
[2] 大谷真紀子, 平原和朗 (2016) H行列法と地震発生サイクルシミュレーション. 計算工学, 21巻4号, 18-21.
[1] 大谷真紀子, 平原和朗 (2015) H行列法を用いた大規模準動的地震発生サイクルシミュレーション. 計算数理工学レビュー, 2015-1, 29-47.
Grants
Grants
2020.04—2024.03 科研費 若手研究「データ同化を用いた巨大地震後の余効すべりと粘弾性変形の同時推定」2016.04—2020.03 科研費 若手研究(B)「海溝型巨大地震発生の理解と予測を目指した粘弾性地震発生サイクルシミュレーション」2012.04—2015.03 科研費 特別研究員(DC1)「超巨大地震発生機構の解明―大規模地震サイクルシミュレーション」
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