Tomochika Tokunaga

The University of Tokyo – Graduate School of Frontier Sciences – Department of Environment Systems


PhD in Applied Earth Sciences (The University of Tokyo), B. Sc. and M. Sc. in Structural Geology (The University of Tokyo). He is a professor of the Geosphere Environment Systems Laboratory, the Department of Environment Systems, Graduate School of Frontier Sciences, The University of Tokyo, and is currently Vice Dean of the Graduate School. He started his career as a research associate, then, an associate professor until being promoted as a full professor on March 2011. Between 1997 and 1998, he was a visiting researcher at the University of Wisconsin-Madison where he conducted both theoretical and experimental analyses on the behavior of anisotropic poroelastic materials. His interests now include long-term stability of subsurface environments, dynamics of saltwater/freshwater behavior near the coast with respect to climate change both short and long-term, coupling processes of deformation and fluid flow in geological formations.


  • Ouyang, M., Ito, Y. and Tokunaga, T., 2021, Quantifying the inundation impacts of earthquake-induced surface elevation change by hydrological and hydraulic modeling. Scientific Reports, 11, 4269 (2021).
  • Joshi, A., Aichi, M. and Tokunaga, T., 2021, Poroelastic modeling of a heterogeneous geologic medium: A case study from Kanto Basin in Japan. Groundwater, 59, 453-467.
  • He, Z., Liu, Q., Chen, J. and Tokunaga, T., 2017, Ultrahigh resolution fiber Bragg grating sensors for quasi-static crustal deformation measurement. J. Lightwave Tech., 35, 3334 – 3346.
  • Goto, H., Tokunaga, T., Aichi, M., Yamamoto, H., Ogawa, T. and Aoki, T., 2014, Quantitative study on experimentally observed poroelastic behavior of Berea sandstone in two-phase fluid system. J. Geophys. Res., 119, 6211-6228.
  • Aichi, M. and Tokunaga, T., 2012, Material coefficients of multiphase thermoporoelasticity for anisotropic micro-heterogeneous porous media. Intern. J. Solid. Struct., 49, 3388-3396.