Keisuke YOSHIDA

Previous studies related to Earthquake Rupture and Repetition Patterns

Earthquake Repetition Pattern

Yoshida, K., S. Ide, 2025, Highly Systematic Response of Seismic Rupture Patterns to Background Loading Rate: Insights From Repeating Earthquakes, Geophysical Research Letters, 52(10), e2024JB029791, https://doi.org/10.1029/2025GL115207
Yoshida, K., Y. Fukushima, Y. Kaneko, 2025, Near‐Field Imaging of Near‐Identical Mw5.9 Earthquakes in the Crust of Ibaraki, Japan, Journal of Geophysical Research: Solid Earth, 130(2), e2025GL115207, https://doi.org/10.1029/2024JB029791
Yoshida, K., 2023, The Mw 6.0-6.8 quasi-repeating earthquakes off Miyagi, Japan, with variable moment release patterns due to a hidden adjacent slip patch, Journal of Geophysical Research: Solid Earth, 128(2), e2022JB025654. https://doi.org/10.1029/2022JB025654
Yoshida, K., T. Matsuzawa, N. Uchida, 2022, The 2021 Mw7.0 and Mw6.7 Miyagi-Oki earthquakes nucleated in a deep seismic/aseismic transition zone: Possible effects of transient instability due to the 2011 Tohoku earthquake, Journal of Geophysical Research: Solid Earth, 127(8). https://doi.org/10.1029/2022JB024887

Radiated Energy Estimation

Orimo, M., Yoshida, K., T. Matsuzawa, T. Taira, K. Emoto, A. Hasegawa, 2025, Systematic Differences in Energy Radiation Processes Between Regular and Intraplate Low-Frequency Earthquakes Around the Focal Area of the 2008 Mw 6.9 Iwate-Miyagi, Japan, Earthquake, Journal of Geophysical Research: Solid Earth, 130(3), e2024JB030750, https://doi.org/10.1029/2024JB030750
Yoshida, K. K. Emoto, S. Takemura, T. Matsuzawa, 2024, Near-Source Waveform Modeling to Estimate Shallow Crustal Attenuation and Radiated Energy of Mw 2.0?4.5 Earthquakes, Journal of Geophysical Research: Solid Earth, 129 (9), e2023JB028523. https://doi.org/10.1029/2023JB028523
Yoshida, K., H. Kanamori, 2023, Time-domain source parameter estimation of Mw 3-7 earthquakes in Japan from a large database of moment-rate functions, Geophysical Journal International, 234 (1), 243-262. https://doi.org/10.1093/gji/ggad068

Source Complexity of Small Earthquakes

Yoshida, K., S. Ide, 2025, Highly Systematic Response of Seismic Rupture Patterns to Background Loading Rate: Insights From Repeating Earthquakes, Geophysical Research Letters, 52(10), e2024JB029791, https://doi.org/10.1029/2025GL115207
Yoshida, K., 2024, Direct Evidence for Diverse Source Complexity in Small Earthquakes (Mw 3.3-5.0) Obtained from Near-Source Borehole Seismic Data, Seismological Research Letters, 95 (4): 2409-2421, https://doi.org/10.1785/0220230431.
Yoshida, K., H. Kanamori, 2023, Time-domain source parameter estimation of Mw 3-7 earthquakes in Japan from a large database of moment-rate functions, Geophysical Journal International, 234 (1), 243-262. https://doi.org/10.1093/gji/ggad068

Rupture Directivity of Small Earthquakes

Yoshida, K., S. Ide, 2025, Highly Systematic Response of Seismic Rupture Patterns to Background Loading Rate: Insights From Repeating Earthquakes, Geophysical Research Letters, 52(10), e2024JB029791, https://doi.org/10.1029/2025GL115207
Yoshida, K., N. Uchida, H. Kubo, R. Takagi, S. Xu, 2022, Prevalence of updip rupture propagation in interplate earthquakes along the Japan trench, Earth and Planetary Science Letters , 578, 117306. https://doi.org/10.1016/j.epsl.2021.117306
Ikeda, R., Yoshida, K., T. Matsuzawa, 2022, Simultaneous estimation of stress drop and rupture directivity of small earthquakes near the Fukushima-Ibaraki border, Tohoku journal of natural disaster science , 58, 25-30 (in Japanese). http://nds-tohoku.in.arena.ne.jp/ndsjournal/volume58/58-5.pdf.
Yoshida, K., H. Noda, M. Nakatani, B. Shibazaki, 2021, Backward earthquake ruptures far ahead of fluid invasion: Insights from dynamic earthquake-sequence simulations, Tectonophysics, 816, 229038. https://doi.org/10.1016/j.tecto.2021.229038
Yoshida, K., 2019, Prevalence of asymmetrical rupture in small earthquakes and its effect on the estimation of stress drop: a systematic investigation in inland Japan, Geoscience Letters, 6. https://doi.org/10.1186/s40562-019-0145-z
Yoshida, K., T Saito, K Emoto, Y Urata, D Sato, 2019, Rupture directivity, stress drop, and hypocenter migration of small-and moderate-sized earthquakes in the Yamagata-Fukushima border swarm triggered by upward pore-pressure migration after the 2011 Tohoku-Oki earthquake, Tectonophysics, 769. https://doi.org/10.1016/j.tecto.2019.228184

Low-Frequency Earthquakes

Orimo, M., Yoshida, K., T. Matsuzawa, T. Taira, K. Emoto, A. Hasegawa, 2025, Systematic Differences in Energy Radiation Processes Between Regular and Intraplate Low-Frequency Earthquakes Around the Focal Area of the 2008 Mw 6.9 Iwate-Miyagi, Japan, Earthquake, Journal of Geophysical Research: Solid Earth, 130(3), e2024JB030750, https://doi.org/10.1029/2024JB030750
Yoshida, K., A. Hasegawa, S. Noguchi, K. Kasahara, 2020, Low-frequency earthquakes observed in close vicinity of repeating earthquakes in the brittle upper crust of Hakodate, Hokkaido, northern Japan, Geophysical Journal International, 793(20), 228609. https://doi.org/10.1093/gji/ggaa418

Stress Drop

Yoshida, K., T. Saito, Y. Urata, Y. Asano and A. Hasegawa, 2017, Temporal changes in stress drop, frictional strength, and earthquake size distribution in the 2011 Yamagata-Fukushima, NE Japan, earthquake swarm, caused by fluid migration, J. Geophys. Res. Solid Earth, 122(12), 10,379-10,397. https://doi.org/10.1002/2017JB014334
Ikeda, R., Yoshida, K., T. Matsuzawa, 2022, Simultaneous estimation of stress drop and rupture directivity of small earthquakes near the Fukushima-Ibaraki border, Tohoku journal of natural disaster science , 58, 25-30 (in Japanese). http://nds-tohoku.in.arena.ne.jp/ndsjournal/volume58/58-5.pdf.
Yoshida, K., 2019, Prevalence of asymmetrical rupture in small earthquakes and its effect on the estimation of stress drop: a systematic investigation in inland Japan, Geoscience Letters, 6. https://doi.org/10.1186/s40562-019-0145-z
Yoshida, K., T Saito, K Emoto, Y Urata, D Sato, 2019, Rupture directivity, stress drop, and hypocenter migration of small-and moderate-sized earthquakes in the Yamagata-Fukushima border swarm triggered by upward pore-pressure migration after the 2011 Tohoku-Oki earthquake, Tectonophysics, 769. https://doi.org/10.1016/j.tecto.2019.228184

Attenuation and Site-Effects

Orimo, M., Yoshida, K., T. Matsuzawa, T. Taira, K. Emoto, A. Hasegawa, 2025, Systematic Differences in Energy Radiation Processes Between Regular and Intraplate Low-Frequency Earthquakes Around the Focal Area of the 2008 Mw 6.9 Iwate-Miyagi, Japan, Earthquake, Journal of Geophysical Research: Solid Earth, 130(3), e2024JB030750, https://doi.org/10.1029/2024JB030750
Yoshida, K. K. Emoto, S. Takemura, T. Matsuzawa, 2024, Near-Source Waveform Modeling to Estimate Shallow Crustal Attenuation and Radiated Energy of Mw 2.0?4.5 Earthquakes, Journal of Geophysical Research: Solid Earth, 129 (9), e2023JB028523. https://doi.org/10.1029/2023JB028523
Yoshida, K., 2021, Detection of temporal change in near-source attenuation during intense fluid-driven seismicity following the 2011 Tohoku-Oki earthquake, Geophysical Journal International, 224 (1), 138?150. https://doi.org/10.1093/gji/ggaa421
Yoshida, K., T. Saito, Y. Urata, Y. Asano and A. Hasegawa, 2017, Temporal changes in stress drop, frictional strength, and earthquake size distribution in the 2011 Yamagata-Fukushima, NE Japan, earthquake swarm, caused by fluid migration, J. Geophys. Res. Solid Earth, 122(12), 10,379-10,397. https://doi.org/10.1002/2017JB014334

Other Source Observations and Simulations

Ando, R., Y. Fukushima, K. Yoshida , K. Imanishi , 2025, Nonplanar 3D fault geometry controls the spatiotemporal distributions of slip and uplift: evidence from the Mw 7.5 2024 Noto Peninsula, Japan, Earthquake, Earth, Planets and Space, 77(53), https://doi.org/10.1186/s40623-025-02187-9
Fukushima, Y., D. Ishimura, N. Takahashi, Y. Iwasa, L. C. Malatesta, T. Takahashi, C.-H. Tang, K. Yoshida, S. Toda, 2024, Landscape changes caused by the 2024 Noto Peninsula earthquake in Japan, Science Advances, 10(49). https://doi.org/10.1126/sciadv.adp9193
Urata, Y., K. Yoshida, E. Fukuyama, H. Kubo, 2017, 3-D Dynamic Rupture Simulations of the 2016 Kumamoto, Japan, Earthquake, Earth, Planets and Space, 69:150, https://doi.org/10.1186/s40623-017-0733-0.
Hasegawa, A., K. Yoshida, 2015, Preceding seismic activity and slow slip events in the source area of the 2011 Mw 9.0 Tohoku-Oki earthquake: a review, Geoscience Letters, 2. https://doi.org/10.1186/s40562-015-0025-0.

Updated on June 9, 2024