1．Name: Takeshi NAKAMURA

2．Research fields:Seismology

3．List of publications and presentations

(1) Reviewed Papers

• Takenaka, H., M. Komatsu, G. Toyokuni, T. Nakamura, and T. Okamoto, Quasi-Cartesian finite-difference computation of seismic wave propagation for a three-dimensional sub-global model, Earth Planets Space, 2017. doi: 10.1186/s40623-017-0651-1
• Nakamura, T. and S. Aoi, Source location and mechanism analysis of an earthquake triggered by the 2016 Kumamoto, southwestern Japan, earthquake, Earth Planets Space, 69, 6, 2017. doi: 10.1186/s40623-016-0588-9
• Hayashimoto, N., T. Nakamura, and M. Hoshiba, Stability of Ocean Bottom Seismograph data exposed to strong shaking: Efforts for utilizing OBS for Earthquake Early Warning, ECGS & ESC/EAEE Joint Workshop Proc., 2016.
• Nakamura, T. and T. Baba, Development of semi-real-time tsunami monitoring and calculation system on ocean-bottom stations off the Kii peninsula, southwest Japan, Marine Tech. Soc. J., 50(3), 76-86, 2016. doi:10.4031/MTSJ.50.3.11
• Nakamura, T., H. Takenaka, T. Okamoto, M. Ohori, and S. Tsuboi, Long-period ocean-bottom motions in the source areas of large subduction earthquakes, Sci. Rep., 5, 16648, 2015. doi:10.1038/srep16648
• Nakano, M., T. Nakamura, and Y. Kaneda, Hypocenters in the Nankai trough determined by using data from both ocean-bottom and land seismic networks and a 3D velocity structure model: Implications for seismotectonic activity, Bull. Seism. Soc. Am., 105, 1594-1605, 2015. doi: 10.1785/0120140309
• Ohori, M., S. Citak, T. Nakamura, M. Sakaue, S. Takemura, T. Furumura, T. Takemoto, K. Iwai, A. Kubo, K. Kawatani, S. Tajima, N. Takahashi, and Y. Kaneda, Modeling the shallow subsurface structure in the urban area of Kochi city, J. Japan Assoc. Earthquake Engineer., 15, 95-113 2015.
• Obana, K., T. Takahashi, T. No, Y. Kaiho, S. Kodaira, M. Yamashita, T. Sato, and T. Nakamura, Distribution and migration of aftershocks of the 2010 Mw 7.4 Ogasawara Islands intraplate normal-faulting earthquake related to a fracture zone in the Pacific plate, Geochem. Geophys. Geosyst., 15, 1363-1373, 2014. doi: 10.1002/2014GC005246
• Nakamura, T., M. Nakano, N. Hayashimoto, N. Takahashi, H. Takenaka, T. Okamoto, E. Araki, and Y. Kaneda, Anomalously large seismic amplifications in the seafloor area off the Kii peninsula, Marine Geophys. Res., 35, 255-270, 2014. doi:10.1007/s11001-014-9211-2
• Nakano, M., T. Nakamura, S. Kamiya, and Y. Kaneda, Seismic activity beneath the Nankai trough revealed by DONET ocean-bottom observations, Marine Geophys. Res., 35, 271-284, 2014. doi: 10.1007/s11001-013-9195-3
• Nakamura, T., H. Takenaka, T. Okamoto, and Y. Kaneda, Seismic wavefields in the deep seafloor area from a submarine landslide source, Pure Appl. Geophys., 171, 1153-1167, 2014. doi:10.1007/s00024-013-0717-3
• Nakamura, T., H. Takenaka, T. Okamoto, and Y. Kaneda, Seismic wave simulation at DONET ocean-bottom stations, Proc. 11th SEGJ Int. Symp., 2013.
• Tsuboi, S. and T. Nakamura, Sea surface gravity changes observed prior to March 11, 2011 Tohoku earthquake, Phys. Earth Planet. Inter., 221, 60-65, 2013. doi: 10.1016/j.pepi.2013.04.004
• Sadeghi, H., M. F. Manoochehri, S. K. Hosseini, T. Nakamura, and S. Suzuki, S-wave anisotropy in the aftershock region of the 2003 Bam, Iran, earthquake (Mw 6.5), Tectonophysics, 594, 128-136, 2013. doi: 10.1016/j.tecto.2013.03.024
• Ohori, M., S. Citak, T. Nakamura, M. Sakaue, S. Takemura, T. Furumura, T. Takemoto, K. Iwai, A. Kubo, K. Kawatani, S. Tajima, N. Takahashi, and Y. Kaneda, Modeling the Shallow Subsurface Structure in the Urban Area of Kochi City, J. Jpn. Assoc. Earthquake Eng., 13, 52-70, 2013.
• Nakano, M., T. Nakamura, S. Kamiya, M. Ohori, and Y. Kaneda, Intensive seismic activity around the Nankai trough revealed by DONET ocean-floor seismic observations, Earth Planets Space, 65, 5-15, 2013. doi: 10.5047/eps.2012.05.013
• Nakamura, T., H. Takenaka, T. Okamoto, and Y. Kaneda, FDM simulation of seismic-wave propagation for an aftershock of the 2009 Suruga Bay earthquake: Effects of ocean-bottom topography and seawater layer, Bull. Seism. Soc. Am., 102, 2420-2435, 2012. doi:10.1785/0120110356
• Kodaira, S., T. Fujiwara, and T. Nakamura, Co-seismic displacement of the 2011 Tohoku-oki Earthquake reaching to the trench axis detected by differential bathymetry survey, J. Geol. Soc. Jpn., 118, 530-534, 2012.
• Sugioka, H., T. Okamoto, T. Nakamura, Y. Ishihara, A. Ito, K. Obana, M. Kinoshita, K. Nakahigashi, M. Shinohara, and Y. Fukao, Very-low-frequency earthquakes occurring along decollement of Nankai, Nature Geosci., 5, 414-418, 2012. doi: 10.1038/ngeo1466
• Nakamura, T., H. Takenaka, T. Okamoto, and Y. Kaneda, A study of the finite difference solution for 3D seismic wavefields near a fluid-solid interface, Zisin 2, 63, 189-196, 2011.
• Okamoto, T., H. Takenaka, T. Nakamura, and T. Aoki, Accelerating large-scale simulation of seismic wave propagation by multi-GPUs and three-dimensional domain decomposition, Earth Planets Space, 62, 939-942, 2010.
• Nakamura, T., S. Tsuboi, Y. Kaneda, and Y. Yamanaka, Rupture process of the 2008 Wenchuan, China, earthquake inferred from teleseismic waveform inversion and forward modeling of broadband seismic waves, Tectonophysics, 491, 72-84, 2010. doi:10.1016/j.tecto.2009.09.020
• Ohori, M., T. Nakamura, K. Ariyoshi, S. Kamiya, H. Matsumoto, E. Araki, A. Sakuma, K. Kawaguchi, S. Tsuboi, and Y. Kaneda, A trial estimation of maximum acceleration expected for DONET, JAMSTEC Rep. Res. Dev., 11, 17-31, 2010.
• Okamoto, T., H. Takenaka, and T. Nakamura, Simulation of seismic wave propagation with GPU, GPU Challenge 2010.
• Takenaka, H., T. Nakamura, T. Okamoto, and Y. Kaneda, A unified approach implementing land and ocean-bottom topographies in the staggered-grid finite-difference method for seismic wave modeling, Proc. 9th SEGJ Int. Symp., 2009.
• Kaneda, Y., M. Ohori, and T. Nakamura, Newly Proposed Disaster Mitigation and Recovery for the Next Nankai Trough Megathrust Earthquakes, J. Disaster Res., 4(2), 151-152, 2009.
• Nakamura, T., Y. Ishihara, Y. Yamanaka, and Y. Kaneda, Source process for complex fault system of the 2007 Chuetsu-oki, Niigata, Japan, earthquake, Earth Planets Space, 61, 273-278, 2009.
• Nakamura, T. and H. Takenaka, A numerical investigation of seismic waves associated with an anisotropic fault zone, Earth Planets Space, 58(5), 569-582, 2006.
• Sadeghi, H., S. M. Fatemi Aghda, S. Suzuki, and T. Nakamura, 3D velocity structure of the 2003 Bam earthquake area (SE Iran): existence of a shallow brittle layer and its relation to the heavy damages, Tectonophysics, 417, 269-283, 2006.
• Takenaka, H., T. Nakamura, Y. Yamamoto, G. Toyokuni, and H. Kawase, Precise location of the fault plane and the onset of the main rupture of the 2005 West Off Fukuoka Prefecture earthquake, Earth Planets Space, 58(1), 75-80, 2006.
• Nakamura, T., H. Takenaka, and S. Suzuki, Strong S-wave anisotropy in the aftershock region of the 2000 Tottori-ken Seibu, Japan, earthquake (Mw6.6), Earth Planets Space, 57(11), 1055-1062, 2005.
• Nakamura, T., S. Suzuki, H. Sadeghi, S. M. Fatemi Aghda, T. Matsushima, Y. Ito, S. K. Hosseini, A. Jafar Gandomi, and M. Maleki, Source fault structure of the 2003 Bam earthquake, southeastern Iran, inferred from the aftershock distribution and its relation to the heavily damaged area: Existence of the Arg-e-Bam fault proposed, Geophys. Res. Lett., 32(9), L09308, doi:10.1029/2005GL022631, 2005.
• Nakamura, T. and H. Takenaka, Influence of anisotropy in the fault zone on the seismic waves, Zisin 2, 57(3), 331-342, 2005.
• Suzuki, S., S. M. Fatemi Aghda, T. Nakamura, T. Matsushima, Y. Ito, H. Sadeghi, M. Maleki, A. Jafar Gandomi, and S. K. Hosseini, Temporal seismic observation and preliminary hypocenter determination of aftershocks of 2003 Bam earthquake, southeastern Iran, Bull. Earthq. Res. Inst. Univ. Tokyo, 79, 37-45, 2004.
• Jafar Gandomi, A., S. M. Fatemi Aghda, S. Suzuki, and T. Nakamura, Strong ground motions of the 2003 Bam earthquake, southeast of Iran (Mw=6.5), Bull. Earthq. Res. Inst. Univ. Tokyo, 79, 47-57, 2004.

(2) Reports

(3) Presentation

(4) Book

(5) Patent

4．Prizes

• Innovative technology award 2016, the Seismological Society of Japan
• 2011 Best Image Award of the Visualization Society of Japan
• Prize winner at the GPU Challenge 2010

5．Affiliated societies

6．Social activity

• Seismological Society of Japan
• Japan Association for Earthquake Engineering
• Japan Geoscience Union
• American Geophysical Union

7．Research

• Analysis of seafloor observation data

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2017/05/08 updated