Yumi URATA

Research fields: Numerical simulation of dynamic rupture propagation
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List of publications and presentations

◎ Reviewed Papers

• 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(20), 228184, https://doi.org/10.1016/j.tecto.2019.228184 Link
• 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, 10,379-10,397, https://doi.org/10.1002/2017JB014334. Link
• Urata, Y., K. Yoshida, E. Fukuyama, and H. Kubo (2017), 3-D dynamic rupture simulations of the 2016 Kumamoto, Japan, earthquake, Earth Planets Space, 69, 150, doi: 10.1186/s40623-017-0733-0. Link (Open Access) [SSJ Paper Award 2018]
• Urata, Y., F. Yamashita, E. Fukuyama, H. Noda, and K. Mizoguchi (2017), Apparent dependence of rate- and state-dependent friction parameters on loading velocity and cumulative displacement inferred from large-scale biaxial friction experiments, Pure Appl. Geophys., 174, 2217-2237, doi:10.1007/s00024-016-1422-9. Link (Open Access)
• Yoshida, K., A. Hasegawa, T. Saito, Y. Asano, S. Tanaka, K. Sawazaki, Y. Urata, and E. Fukuyama (2016), Stress rotations due to the M6.5 foreshock and M7.3 main shock in the 2016 Kumamoto, SW Japan, earthquake sequence, Geophys. Res. Lett., 43, 10,097-10,104, doi:10.1002/2016GL070581. Link
• Togo, T., T. Shimamoto, F. Yamashita, E. Fukuyama, K. Mizoguchi, Y. Urata (2015), Stick-slip behavior of Indian gabbro as studied using a NIED large-scale biaxial friction apparatus, Earthq. Sci., 28(2), 97-118, doi:10.1007/s11589-015-0113-4. Link
• Urata, Y., K. Kuge, and Y. Kase (2015), Effect of water phase transition on dynamic ruptures with thermal pressurization: Numerical simulations with changes in physical properties of water, J. Geophys. Res. Solid Earth, 120, 962-975, doi:10.1002/2014JB011370. Link
• Urata, Y., S. Hok, E. Fukuyama, and R. Madariaga (2014), The effect of thermal pressurization on dynamic fault branching, Geophys. J. Int., 196, 1237-1246, doi:10.1093/gji/ggt457. Link (Open Access)
• Urata, Y., K. Kuge, and Y. Kase (2013), Suppression of slip and rupture velocity increased by thermal pressurization: Effect of dilatancy, J. Geophys. Res. Solid Earth, 118, 5827-5837, doi:10.1002/2013JB010640. Link
• Urata, Y., K. Kuge, and Y. Kase (2012), Spontaneous dynamic rupture propagation beyond fault discontinuities: Effect of thermal pressurization, Bull. Seism. Soc. Am., 102, 53-63, doi:10.1785/0120110089. Link
• Kuge, K., Y. Kase, Y. Urata, J. Campos, and A. Perez (2010), Rupture characteristics of the 2005 Tarapaca, northern Chile, intermediate-depth earthquake: Evidence for heterogeneous fluid distribution across the subducting oceanic plate?, J. Geophys. Res., 115, B09305, doi:10.1029/2009JB007106. Link
• Urata, Y., K. Kuge, and Y. Kase (2008), Heterogeneous rupture on homogeneous faults: Three-dimensional spontaneous rupture simulations with thermal pressurization, Geophys. Res. Lett., 35, L21307, doi: 10.1029/2008GL035577. Link

◎ Reports

• Urata, Y., K. Kuge, and Y. Kase (2009), Rupture propagation beyond fault discontinuities: Effect of thermal pressurization, Chikyu Monthly, 31, 294-299 (in Japanese).

◎ Presentation (Oral)

• Yoshida, K., T. Saito, K. Emoto, Y. Urata (2019), Estimation of rupture directivity, fault plane, and stress drop of small earthquakes in inland areas of Japan, JpGU 2019, SSS14-03.
• Urata, Y., A. Noda, T. Saito, E. Fukuyama (2018), Possible Dynamic Rupture Scenarios of the Nankai-trough Earthquake: Effects of Hypocenter Locations and Friction Parameters, JpGU 2018, SSS15-09.
• Urata, Y., K. Yoshida, and E. Fukuyama (2017), 3-D Dynamic Rupture Simulations of the 2016 Kumamoto, Japan, Earthquake, JpGU-AGU Joint Meeting 2017, SSS08-11.
• Hashimoto, C., Y. Urata, and E. Fukuyama (2017), Physics-based simulation for possible interplate earthquakes along the Nankai trough, JpGU-AGU Joint Meeting 2017, SSS08-16.
• Urata, Y., K. Yoshida, and E. Fukuyama (2017), 3-D Spontaneous Rupture Simulations of the 2016 Kumamoto, Japan, Earthquake, European Geosciences Union General Assembly 2017, EGU2017-5740 (Invited).
• Urata, Y., F. Yamashita, and E. Fukuyama (2013), Apparent dependence of rate- and state-dependent friction parameters on loading velocity and displacement, Seismological Society of Japan 2013 Fall meeting, A22-06.
• Hok, S., Y. Urata, E. Fukuyama, and R. Madariaga (2013), Splay fault rupture as a mechanism to enhance ocean floor motion during the Great Tohoku-Oki earthquake : insights from BIEM dynamic rupture simulations, IAHS-IASPO-IASPEI Joint Assembly, S304S3.05.
• Urata, Y., S. Hok, E. Fukuyama, and R. Madariaga (2013), Dynamic fault branching with thermal pressurization, Japan Geoscience Union Meeting 2013, SSS29-03.
• Urata, Y., S. Hok, E. Fukuyama, and R. Madariaga (2012), How thermal pressurization affects on dynamic fault branching, 8th ACES International Workshop.
• Urata, Y., K. Kuge, and Y. Kase (2012), Dynamic ruptures with thermal pressurization: Effect of changes in physical properties due to phase transition of water, Japan Geoscience Union Meeting 2012, SSS28-04.
• Urata, Y., K. Kuge, and Y. Kase (2012), Suppression of slip and rupture velocity increased by thermal pressurization: Effect of Dilatancy, Japan Geoscience Union Meeting 2012, SSS29-04.
• Urata, Y., K. Kuge, and Y. Kase (2010), Spontaneous dynamic rupture propagation with thermal pressurization: Phase transitions of pore fluid, the 8th ASC General Assembly, S3-43.
• Urata, Y., K. Kuge, and Y. Kase (2010), Spontaneous dynamic rupture propagation beyond fault discontinuities: Effect of thermal pressurization, 7th ACES International Workshop.
• Urata, Y., K. Kuge, and Y. Kase (2010), Spontaneous dynamic rupture propagation beyond fault discontinuities: effect of thermal pressurization, Workshop Earthquake Source Dynamics: Data and Data-constrained Numerical Modeling.
• Urata, Y., K. Kuge, and Y. Kase (2008), Rupture Propagation beyond Fault Discontinuities: Significance of Thermal Pressurization, 7th General Assembly of Asian Seismological Commission and Seismological Society of Japan 2008 Fall meeting, B32-06.
• Kuge, K., Y. Kase, and Y. Urata (2008), The 2005 Tarapaca, Chile, Intermediate-depth Earthquake : Evidence of Heterogeneous Fluid Distribution across the Plate?, 7th General Assembly of Asian Seismological Commission and Seismological Society of Japan 2008 Fall meeting, B32-05.

Prizes

• SSJ Young Scientist Award 2019
• SSJ Paper Award 2018 (Urata et al., 2017, EPS)
• Outstanding Student Presentation Award (Seismological Society of Japan 2010 Fall Meeting)

Affiliated societies

• American Geophysical Union
• Japan Geoscience Union
• Seismological Society of Japan

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2020/06/16 updated