JAMSTEC > Research Institute for Value-Added-Information Generation (VAiG) > Center for Mathematical Science and Advanced Technology (MAT) > Member > Yuzuru Yamamoto

Center for Mathematical Science and Advanced Technology (MAT)


Yuzuru Yamamoto


Japan Agency for Marine-Earth Science and Technology
Center for Mathematical Science and Advanced Technology

3173-25, Showa-machi, Kanazawa-ku, Yokohama-city, Kanagawa, 236-0001, Japan

Short CV

I am basically field-based structural geologist who is interested in geology, geomechanics, and tectonics in plate-subduction zone.


2003.4 - 2006.3 JSPS Fellow, Institute of Geosciences, Shizuoka University
2006.4 - 2008.3 Special researcher, Geological Survey of Japan, AIST
2008.4 - 2008.5 Researcher, Institute of Geosciences, Shizuoka University
2008.6 - 2009.3 Researcher, Graduate school of Engineering, Kyoto University
2009.4 - 2014.3 Researcher, IFREE, JAMSTEC
2014.4 - Present Researcher, MAT, JAMSTEC


1997.4 - 2003.3 Doctoral Program in Geosciences, University of Tsukuba

Research Topics

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Papers (Peer-Reviewed)

  • Yamamoto, Y., Hamada, Y., Chiyonobu, S., Kamiya, N., Ojima, T., Saito, S., 2017. Geothermal structure of the Miura-Boso Plate subduction margin, central Japan. Tectonophysics, 710-711, 81-87, 10.1016/j.tecto.2016.11.004.
  • Yamamoto, Y., Chiyonobu, S., Kamiya, Hamada, Y., Saito, S., 2017. Structural characteristics of shallow portion of plate subduction zone: A forearc system in the southern Boso Peninsula, central Japan. Jour. Geol. Soc. Jpn., 123,41-55. (in Japanese)
  • Kamiya, N., Yamamoto, Y., Wang, Q., Kurimoto, Y., Zhang, F., Takemura, T., 2017. Major variations in vitrinite reflectance and consolidation characteristics within a post-middle Miocene forearc basin, central Japan. Tectonophysics, 710-711, 69-80, 10.1016/j.tecto.2016.10.027.
  • Chiyonobu, S., Yamamoto, Y., Saito, S., 2017. Calcareous nannofossil biostratigraphy and geochronology of Neogene trench-slope cover sediments in the south Boso Peninsula, central Japan: Implications for the development of a shallow accretionary complex. Tectonophysics, 710-711, 56-68, 10.1016/j.tecto.2016.11.030.
  • Fukuchi, R., Yamaguchi, A., Yamamoto, Y., Ashi, J., 2017. Paleothermal structure of the Nankai inner accretionary wedge estimated from vitrinite reflectance of cuttings, Geochemistry Geophysics Geosystems, DOI: 10.1002/2017GC006928
  • Uchimura, H., Nishi, H., Takashima, R., Kuroyanagi, A., Yamamoto, Y., Kutterolf, S., Distribution of recent benthic foraminifera off western Costa Rica in the eastern equatorial Pacific Ocean: Paleontological Research. doi:10.2517/2017PR003, in press
  • Lin, W., Byrne, T. B., Kinoshita, M., McNeil L. C., Chang, C., Lewis, J. C., Yamamoto, Y., Saffer D. M., Moore J. C., et al., 2016. Distribution of stress state in the Nankai subduction zone, southwest Japan and a comparison with Japan Trench. Tectonophysics, 692, 120-130. 10.1016/j.tecto.2015.05.008.
  • Kurimoto, Y., Yamamoto, Y., Sakaguchi, Saeda, Y., H., Zhang, F., 2016. Research on formation mechanism of plate boundary fault by investigating the macro-micro characteristics of semi-lithified trench-slope siltstone from the Boso Peninsula and Fujinomori clay subjected to dynamic load under high confining pressure. Japanese Geotechnical Journal, 11, 341-351. (in Japanese)
  • Kurimoto, Y., Yamamoto, Y., Sakaguchi, Saeda, Y., H., Zhang, F., 2016. Numerical tests on the formation mechanism of the décollement zone due to earthquake-induced dynamic force and plate tectonics. Japanese Geotechnical Journal, 11, 353-363. (in Japanese)
  • Saitoh, Y., Ishikawa, T., Tanimizu, M., Murayama, M., Ujiie, Y., Yamamoto, Y., Ujiie, K., Kanamatsu, T., 2015. Sr, Nd, and Pb isotope compositions of hemipelagic sediment in the Shikoku Basin: Implications for sediment transport by the Kuroshio and Philippine Sea plate motion in the late Cenozoic. Earth and Planetary Science Letters, 421, 47-57.
  • Kurimoto, Y., Yamamoto, Y., Sakaguchi, H., Zhang, F., Saeda, Y., 2015. Mechanical properties of soft sedimentary rock under K0 and isotropic cyclic loading conditions. Japanese Geotechnical Society Special Publication, 12, 498-503.
  • Yamamoto, Y., 2014. Dewatering structure and soft-sediment deformation controlled by slope instability: examples from the late Miocene to Pliocene Miura–Boso accretionary prism and trench-slope basin, central Japan. Marine Geology, 356, 65-70, DOI: 10.1016/j.margeo.2014.05.016
  • Yamamoto, Y., and Kawakami, S., 2014. Along-strike migration of intermittent submarine slope failures at subduction margins: geological evidence from the Chikura Group, central Japan. In Krastel, S., et al. (eds) Submarine Mass Movements and Their Consequences. Advances in Natural and Technological Hazards Research Series 37, 551-560, doi:10.1007/978-3-319-00972-8_49, Springer Science+Business Media.
  • Anma, R., Yamamoto, Y., Geshi, N., Nanayama, F., Nakagawa, S., 2014. Geology and development of the Yakushima island: a world heritage site. Jour. Geol. Soc. Jpn., 120, 101-125. (in Japanese)
  • Yamamoto, Y., Lin, W., Oda, H., Byrne, T., Yamamoto, Y., 2013. Stress states at the subduction input site, Nankai Subduction Zone, using anelastic strain recovery (ASR) data in the basement basalt and overlying sediments. Tectonophysics, 600, 91-98, 10.1016/j.tecto.2013.01.028
  • Kameda, J., Yamamoto, Y., Hamada, Y., Fujimoto, K., and Kimura, G., 2013. Progress of illitization along an imbricate frontal thrust at shallow depths in an accretionary prism. Tectonophysics, 600, 41-51, 10.1016/j.tecto.2013.04.024
  • Zhao, X., Oda, H., Wu, H., Yamamoto, T., Yamamoto, Y., Yamamoto, Y., Nakajima, T., Kitamura, Y., and Kanamatsu, T., 2013. Magnetostratigraphic results from sedimentary rocks of IODP’s Nankai Trough Seismogenic Zone Experiment (NanTroSEIZE) Expedition 322. In Jovane, L., et al., eds., Magnetostratigraphy: Not only a dating tool, The Geological Society of London Special Publication 373, DOI: 10.1144/SP373.14
  • Vannucchi, P., Sak, P. B., Morgan, J. P., Ohkushi, K., Ujiie, K., and the IODP Exp. 334 Scientific Party, 2013. Rapid pulses of uplift, subsidence, and subduction erosion offshore Central America: Implications for building the rock record of convergent margins, Geology, 41, 995-998, doi: 10.1130/G34355.1.
  • Vannucchi, P., Ujiie, K., Stroncik, N., and the IODP Exp. 334 Scientific Party, 2013. IODP Expedition 334: An investigation of the sedimentary record, fluid flow and state of stress on top of the seismogenic zone of an erosive subduction margin, Scientific Drilling, 15, 23-30.
  • Yamamoto, Y., and Sawyer, D., E., 2012. Systematic variation of fabric and physical properties in mass transfer deposits in the Ursa region, Northern Gulf of Mexico. In Yamada, Y., et al. (eds) Submarine Mass Movements and Their Consequences. Advances in Natural and Technological Hazards Research Series 31, 649-658, doi:10.1007/978-94-007-2162-3_58, Springer Science+Business Media.
  • Yamamoto, Y., Yamada, Y., Yamashita, Y., Chiyonobu, S., Shibata, T., and Hojo, M., 2012. Systematic development of submarine slope failures at subduction margins: fossil record of accretion-related slope failure in the Miocene Hota Accretionary Complex, Central Japan. In Yamada, Y., et al. (eds) Submarine Mass Movements and Their Consequences. Advances in Natural and Technological Hazards Research Series 31, 355-364, doi:10.1007/978-94-007-2162-3_32, Springer Science+Business Media.
  • Yamamoto, Y., Tonogai, K., and Anma, R., 2012. Fabric-based criteria to distinguish tectonic from sedimentary mélanges in the Shimanto accretionary complex, Yakushima Island, SW Japan. Tectonophysics, 568-569,65-73,doi:10.1016/j.tecto.2011.10.018.
  • Yamamoto, Y., Chiyonobu, S., Kurihara, T., Yamaguchi, Y., Hina, S., Hamahashi, M., Raimbourg, H., Augier, R., Gadenne, L., 2012. Unconformity between a Late Miocene–Pliocene accretionary prism (Nishizaki Formation) and Pliocene trench-slope sediments (Kagamigaura Formation), central Japan. Island Arc, 21, 231-234.
  • Kitamura, Y., and Yamamoto, Y., 2012. Records of submarine landslides in subduction input recovered by IODP Expedition 322, Nankai Trough, Japan. In Yamada, Y., et al. (eds) Submarine Mass Movements and Their Consequences. Advances in Natural and Technological Hazards Research Series 31, 659-670, doi:10.1007/978-94-007-2162-3_59, Springer Science+Business Media.
  • Tokiwa, T., and Yamamoto, Y., 2012. Relationship between magnetic fabrics and shear directions in mélange within the Miyama Formation, Shimanto accretionary complex, Japan. Tectonophysics, 568-569,53-64, doi:10.1016/j.tecto.2011.11.001.
  • Kameda, J., Hina, S., Kobayashi, K., Yamaguchi, A., Hamada, Y., Yamamoto, Y., Hamahashi, M., and Kimura, G., 2012. Silica diagenesis and its effect on interplate seismicity in cold subduction zones. Earth and Planetary Science Letters, 317-318, 136-144.
  • Taira, A., Iijima, K., Igarashi, C., Sakai, S., Sakaguchi, H., Sakaguchi, A., Ohkawa E., Kanamatsu, T., Yamamoto, Y., et al.,2012.Identification of a Soil Liquefied Layer due to the 2011 off the Pacific coast of Tohoku Earthquake Using X-ray CT Scan Imaging: An Example from Core Samples from Maihama 3-chome, Urayasu City.Jour. Geol. Soc. Jpn., 118,410-418.(in Japanese with English abstract)
  • Lin, W., Saito, S., Sanada, Y., Yamamoto, Y., Hashimoto, Y., and Kanamatsu, T., 2011. Principal horizontal stress orientations prior to the 2011 Mw 9.0 Tohoku-Oki, Japan, earthquake in its source area, Geophysical Research Letters, 38, L00G10, doi:10.1029/2011GL049097.
  • Tsuchida, K., Shimoda, N., Yamamoto, Y., Sato, R., Tsuji, Y., Maldonado, V. R., Reyes, T. E., Lopez, C. H., Ortega, G. J. V., Basurto, B. G., 2011.Petroleum system modeling in the deep waters in the southern part of the Gulf of Mexico. Journal of Japanese association for Petroleum Technology76, 70-76. (in Japanese with English abstract)
  • Yamada, Y., Yamashita, Y. and Yamamoto, Y., 2010. Submarine landslides at subduction margins: insight from physical models. Tectonophysics, 484, 156-167.
  • Kameda, J., Yamamoto, Y., and Kimura, G., 2010. Smectite swelling in the Miura-Boso accretionary prism: Possible cause for incipient décollement zone formation. Tectonophysics, 494, 75-84.
  • Lin, W., Byrne, T. B., Tsutsumi, A., Yamamoto Y., Sakaguchi, A., Yamamoto, Y., and Chang, C., 2010. Applications of anelastic strain measurements in scientific ocean deep drillings, Proceedings of the International Symposium on In Situ Rock Stress 2010, 199-204.
  • Underwood, M. B., Saito, S., Kubo, Y., the IODP Expedition 322 Scientists, 2010. IODP Expedition 322 Drills Two Sites to Document Inputs to The Nankai Trough Subduction Zone, Scientific Drilling, 10, 14-25.
  • Yamamoto, Y., Nidaira, M., Ohta, Y. and Ogawa, Y., 2009. Formation of chaotic rock-units during primary accretion processes: examples from the Miura–Boso accretionary complex, Central Japan. Island Arc, 18, 496-512.
  • Yamada, Y., Yamashita, Y., Yamamoto, Y., Matsuoka, T., 2008, Submarine Landslides at Submarine Margins: Insights from Physical Models. Bollettino di Geofisica teorica ed applicata. 49, supplement, 198-203.
  • Flemings, P.B., Long, H., Dugan, B., Germaine, J., John, C.M., Behrmann, J.H., Sawer, D., and the Expedition 308 Scientists, 2008. Pore pressure penetrometers document high overpressure near the seafloor where multiple submarine landslides have occurred on the continental slope, offshore Louisiana, Gulf of Mexico. Earth and Planetary Science Letters, 269, 309-325.
  • Yamamoto, Y., Ogawa, Y., Uchino, T., Muraoka, S., and Chiba, T., 2007. Large-scale chaotically mixed sedimentary body within the Late Pliocene to Pleistocene Chikura Group, Central Japan, Island Arc, 16, 505-507.
  • Yamamoto, Y., Kurihara, T., Tokiwa, T., Ueda, H., Nakae, S., Wakita, K., Hara, H., Uchino, T., Ueno, H., Kamata, Y., Yamada, Y., Miyakawa, A., and Tsuji, K., 2007. Large-scale convolute lamination and flame structures in the Plio-Pleistocene Chikura Group, central Japan. Jour. Geol. Soc. Jpn., 113,XVII-XVIII. (in Japanese)
  • Yamamoto, Y., 2006. Systematic variation of shear-induced physical properties and fabrics in the Miura-Boso accretionary prism: The earliest processes during off scraping. Earth and Planetary Science Letters, 244, 270-284.
  • Yamamoto, Y., Anma, R., 2006. Duplex structure in the Yakushima Island, SW Japan. Jour. Geol. Soc. Jpn., 112,XVII-XVIII. (in Japanese)
  • Behrmann, J.H., Flemings, P.B., John, C.M., and the Expedition 308 Scientists, 2006. Rapid sedimentation, overpressure and focused fluid flow, Gulf of Mexico continental margin. Scientific Drilling, 3, 12-17. doi:10.2204/iodp.sd.3.03.2006
  • Yamamoto, Y., Mukoyoshi, H. and Ogawa, Y., 2005. Structural characteristics of shallowly buried accretionary prism: Rapidly uplifted Neogene accreted sediments on the Miura-Boso Peninsula, central Japan, Tectonics, 24, TC5008, doi:10.1029/2005TC001823.
  • Yamamoto, Y., Kawakami, S., 2005. Rapid tectonics of the late Miocene Boso accretionary prism related to the Izu-Bonin arc collision. The Island Arc, 14, 178-198.
  • Ogawa, Y., Yamamoto, Y., Nidaira, M., 2003. Geologic structure and tectonics of Misaki Formation, Miura Group, in the southern Miura Peninsula. Field guide, Jour. Geol. Soc. Jpn., 110, 143-162. (in Japanese)
  • Takahashi, M., Lin, W., Hirono, T., Yamamoto, Y., 2002. On visualization of inner microstructure in rocks by micro focus X ray CT. Jour. Japan Soc. Eng. Geol., 143, 235-238. (in Japanese)
  • Hirono, T., Takahashi, M., Nakashima, S., Yamamoto, Y., Lin, W., 2002. Nondestructive observation of internal structure in sediments and rocks using microfocus V-ray CT system. Jour. Geol. Soc. Jpn., 108,606-609. (in Japanese)
  • Yamamoto, Y., Ohta, Y. and Ogawa, Y., 2000. Implication for the two-stage layer-parallel faults in the context of Izu forearc collision zone - Examples from the Miura accretionary prism, Central Japan. Tectonophysics, 325, 133-144.
  • Yamamoto, Y., Ohta, Y. and Ogawa, Y., 1998. Duplex structures in the Misaki Formation at the southernmost Miura Peninsula, central Japan. Jour. Geol. Soc. Jpn., 104,XVII-XVIII.(in Japanese)

Other Publications (Non-reviewed papers: IODP Preliminary Report)

  • Heuer, V. B., Inagaki, F., Morono, Y., Kubo, Y., Maeda, L., the Expedition 370 Scientists, 2017. Temperature Limit of the Deep Biosphere off Muroto. IODP Prel. Rept., 370. http://dx.doi.org/10.14379/iodp.pr.370.2017
  • Expedition 348 Scientists and Scientific Participants, 2014. NanTroSEIZE Stage 3: NanTroSEIZE plate boundary deep riser 3. IODP Prel. Rept., 348. doi:10.2204/iodp.pr.348.2014
  • Expedition 344 Scientists, 2013. Costa Rica Seismogenesis Project, Program A Stage 2 (CRISP-A2): sampling and quantifying lithologic inputs and fluid inputs and outputs of the seismogenic zone. IODP Prel. Rept., 344. doi:10.2204/iodp.pr.344.2013
  • Expedition 334 Scientists, 2011. Costa Rica Seismogenesis Project (CRISP): sampling and quantifying input to the seismogenic zone and fluid output. IODP Prel. Rept., 334. doi:10.2204/iodp.pr.334.2011
  • Underwood, M.B., Saito, S., Kubo, Y., the Expedition 322 Scientists, 2009. NanTroSEIZE Stage 2: subduction inputs. IODP Prel. Rept., 322. doi:10.2204/iodp.pr.322.2009.
  • IODP EX. 308 Scientists, 2005. Overpressure and fluid flow processes in the deepwater Gulf of Mexico: slope stability, seeps, and shallow-water flow. IODP Prel. Rept., 308, 70pp, Integrated Ocean Drilling Program, Texas A & M Univ., College Station.

Other Publications (Non Peer-Reviewed)

  • Yamamoto, Y., 2014.Expedition 308: Gulf of Mexico Hydrogeology.Chikyu/Special, 64,67-73.
  • Yamamoto, Y., 2010.Occurrences and their classification of submarine mass-transport deposits exposed in the Miura and Boso peninsulas, central Japan. Chikyu/Special, 61,136-145.
  • Yamamoto, Y., and Sakaguchi, A.,2007. Earthquake-induced large-scale chaotically mixed sedimentary body. Chishitsu News, 10, 12-12.
  • Yamamoto, Y., 2004. Report of pre-32nd IGC Field trip “The role of olistostromes and argille scagliose in the structural evolution of the Northern Apennines”. Chishitsu News, 7, 15-16.
  • Yamamoto, Y., 2003. Comparative study on deformation and related change of physical properties in shallow and deep part of accretionary prisms. 2003 Report, Fukata Geological Institute, 51-67.
  • Fujii, Y., Takemura, T., Shichida, M., Takahashi, M., Yamamoto, Y., 2003. Polygonally fractured boulder in Yakushima. Chishitsu News, 589, 40-44.
  • Horiuchi, N., Yamamoto, Y., Anma, R., 2003. Folded sandstone dykes observed in the Yakushima Island, SW Japan. Natural and Human Ecosystems of Yakushima, 205-229
  • Tonogai, K., Yamamoto, Y., Anma, R., 2003. Mud diapir mélange in the Yakushima Island, SW Japan. Natural and Human Ecosystems of Yakushima, 230-239
  • Yamamoto, Y., Tonogai, K. and Anma, R., 2003. Deformation fabrics in the Shimanto Super-group, Yakushima Island, SW Japan. Natural and Human Ecosystems of Yakushima, 179-193.
  • Anma, R., Kawakami, S., Yamamoto, Y., 2002. Structural profile of the Nankai accretionary prism and Calyptogena colonies along the Shionomisaki submarine canton: results of “Shinkai” 6K#522 and #579 dives. JAMSTEC J. Deep Sea Res., 20, 59-75.

Books and Book Chapters

  • A selection of 100 geologic structures in Japan. Geological Society of Japan (eds) Asakura Publishing Co., Ltd., 2012.
    Yamamoto, Y., Anma, R. Duplex structures in Yakushima, Kagoshima. Chapter 1, No. 18, 30-31.
    Yamamoto, Y., Ogawa, Y. Chaotic beds and duplex in the Misaki Formation, Kanazawa. Chapter 6, No. 85, 140-141.
    Yamamoto, Y. Submarine landslide and duplex in the Chikhura Group, Chiba. Chapter 6, No. 87, 144-146.
    Yamamoto, Y., Horiuchi, N., Anma, R. Deformed sand dykes in Yakushima, Kagoshima. Chapter 6, No. 99, 166-167.
  • Foundation of Ocean Floor Science. Kyoritsu Publishing Co., Ltd., 2016.
    Yamamoto, Y. Chapter 10, 10.5: Moisture and density.
    Yamamoto, Y., Lin, W. Chapter 10, 10.6: Grain and pore size.