Volcano and Earthquake Research Division

Multidisciplinary Resilience Research Center, IIR

Recent publications

• Hernández, P.A., K. Nogami, E. Padrón, L. Somoza, C. Amonte, T. Mori, G.V. Melián, H. Sumino, Y. Kikawada, N.M. Pérez, Hydrochemical and hydroacoustic investigation of the Yugama acid crater lake, Kusatsu-Shirane, Japan. Front. Earth Sci., 9:741795, doi:10.3389/feart.2021.741795, 2021.
• Yaguchi, M., T. Ohba, A. Terada, Groundwater interacting at depth with hot plastic magma triggers phreatic rruptions at Yugama crater lake of Kusatsu-Shirane Volcano (Japan). Front. Earth Sci., 9:741742, doi:10.3389/feart.2021.741742, 2021.
• Ishizu, K., Y. Ogawa, T. Mogi, Y. Yamaya and T. Uchida, Ability of the magnetotelluric method to image a deep conductor: Exploration of a supercritical geothermal system, Geothermics, 96, 102205, doi:10.1016/j.geothermics.2021.102205, 2021.
• Ishizu, K. and Y. Ogawa Offshore–onshore resistivity imaging of freshwater using a controlled source electromagnetic method: A feasibility study, Geophysics, 86, E391-E405, doi:10.1190/geo2020-0906.1, 2021.
• Iwamori, H, K. Ueki, T. Hoshide, H. Sakuma, M. Ichiki, T. Watanabe, M. Nakamura, H. Nakamura, T. Nishizawa, A. Nakao, Y. Ogawa, T. Kuwatani, K. Nagata, T. Okada, E. Takahashi, Simultaneous analysis of seismic velocity and electrical conductivity in the crust and the uppermost mantle: A forward model and inversion based on grid search, J. Geophys. Res. Solid Earth, 126, e2021JB022307, doi:10.1029/2021JB022307, 2021.
• Ishitsuka, K., H. Ojima, T. Mogi, T. Kajiwara, T. Sugimoto, H. Asanuma, Characterization of hydrothermal alteration along geothermal wells using unsupervised machine-learning analysis of X-ray powder diffraction data, Earth Sci. Inform., doi:10.1007/s12145-021-00694-3, 2021.
• Tanaka, R., Y. Yamaya, M. Tamura, T. Hashimoto, N. Okazaki, R. Takahashi, T. Mogi, Three-dimensional inversion of audio-magnetotelluric data acquired from the crater area of Mt. Tokachidake, Japan, Earth Planets Space, 73:172, doi:10.1186/s40623-021-01502-4, 2021.
• Diba, D., Nurhasan, D. Sutarno, Y. Ogawa, Subsurface structure around Mas crater of Papandayan Volcano based on magnetotelluric and geomagnetic data, J. Phys. Confer. Ser., 1949(2021)012013, doi:10.1088/1742-6596/1949/1/012013, 2021.
• Watanabe, N., Y. Yamaya, K. Kitamura, T. Mogi, Viscosity-dependent empirical formula for electrical conductivity of HO-NaCl fluids at elevated temperatures and high salinity, Fluid Phase Equilibria, 113187, doi:10.1016/j.fluid.2021.113187, 2021.
• Terada, A., W. Kanda, Y. Ogawa, T. Yamada, M. Yamamoto, T. Ohkura, H. Aoyama, T. Tsutsui, S. Onizawa, The 2018 phreatic eruption at Mt. Motoshirane of Kusatsu–Shirane volcano, Japan: eruption and intrusion of hydrothermal fluid observed by a borehole tiltmeter network, Earth Planets Space, 73:157, doi:10.1186/s40623-021-01475-4, 2021.
• Ichihara, H., T. Mogi, T. Uchida, T., H. Satoh, Y. Yamaya, M. Fujii, S. Yamazaki, K. Okazaki, N. Tada, Imaging of a serpentinite complex in the Kamuikotan Zone, northern Japan, from magnetotelluric soundings, Earth Planets Space, 73:154, doi:10.1186/s40623-021-01482-5, 2021.
• Ishitsuka, K., Y. Kobayashi, N. Watanabe, Y. Yamaya, E. Bjarkason, A. Suzuki, T. Mogi, H. Asanuma, T. Kajiwara, T. Sugimoto, R. Saito, Bayesian and neural network approaches to estimate deep temperature distribution for assessing a supercritical geothermal system: Evaluation using a numerical model, Nat. Resour. Res., doi:10.1007/s11053-021-09874-w, 2021.
• Ishizu, K., Y. Ogawa, T. Mogi, Y. Yamaya and T. Uchida, Ability of the magnetotelluric method to image a deep conductor: Exploration of a supercritical geothermal system, Geothermics, 96, 102205, doi:10.1016/j.geothermics.2021.102205, 2021.
• Kametani, N., Y. Ishizaki, M. Yoshimoto, F. Maeno, A. Terada, R. Furukawa, R. Honda, Y. Ishizuka, J. Komori, M. Nagai, S. Takarada, Total mass estimate of the January 23, 2018, phreatic eruption of Kusatsu-Shirane Volcano, central Japan, Earth Planets Space, 73:141, doi:10.1186/s40623-021-01468-3, 2021.
• Koyama, T., W. Kanda, M. Utsugi, T. Kaneko, T. Ohminato, A. Watanabe, H. Tsuji, T. Nishimoto, A. Kuvshinov, Y. Honda, Aeromagnetic survey in Kusatsu-Shirane volcano, central Japan, by using an unmanned helicopter, Earth Planets Space, 73:139, doi:10.1186/s40623-021-01466-5, 2021.
• Kametani, N., Y. Ishizaki, N. Katsuoka, M. Yoshimoto, A. Terada, Eruption Styles and Ages of the Shirane-Minami Crater Chain and the Yumi-ike Maar on the Southern Foot of the Shirane Pyroclastic Cone Group, Kusatsu-Shirane Volcano, Central Japan (in Japanese with English abstract), Bull. Volcanol. Soc. Jpn., 66, 1-19, doi:10.18940/kazan.66.1_1, 2021.
• Usui Y, M. Uyeshima, T. Ogawa, R. Yoshimura, N. Oshiman, S. Yamaguchi, H. Toh, H. Murakami, K. Aizawa, T. Tanbo, Y. Ogawa, T. Nishitani, S. Sakanaka, M. Mishina, H. Satoh, T. Goto, T. Kasaya, T. Mogi, Y. Yamaya, I. Shiozaki, Y. Honkura, Electrical resistivity structure around the Atotsugawa fault, central Japan, revealed by a new 2-D inversion method combining Wideband-MT and Network-MT datasets, J. Geophys. Res., 126, e2020JB020904, doi:10.1029/2020JB020904, 2021.
• Yamada, T., A.K. Kurokawa, A. Terada, W. Kanda, H. Ueda, H. Aoyama, T. Ohkura, Y. Ogawa, T. Tanada, Locating hydrothermal fluid injection of the 2018 phreatic eruption at Kusatsu-Shirane volcano with volcanic tremor amplitude, Earth Planets Space, 73:14, doi:10.1186/s40623-020-01349-1, 2021.
• Seki, K., W. Kanda, K. Mannen, S. Takakura, T. Koyama, R. Noguchi, Y. Yukutake, M. Ishikawa, M. Fukai, M. Harada, Y. Abe, Imaging the source region of the 2015 phreatic eruption at Owakudani, Hakone Volcano, Japan, using high-density audio-frequency magnetotellurics, Geophys. Res. Lett., 48, e2020GL091568, doi:10.1029/2020GL091568, 2021.
• Aizawa, K., S. Takakura, H. Asaue, K. Koike, R. Yoshimura, K. Yamazaki, S. Komatsu, M. Utsugi, H. Inoue, K. Tsukamoto, M. Uyeshima, T. Koyama, W. Kanda, T. Yoshinaga, N. Matsushima, K. Uchida, Y. Tsukashima, T. Matsushima, H. Ichihara, D. Muramatsu, Y. Teguri, A. Shito, S. Matsumoto, H. Shimizu, Electrical conductive fluid-rich zones and their influence on the earthquake initiation, growth, and arrest processes: observations from the 2016 Kumamoto earthquake sequence, Kyushu Island, Japan, Earth Planets Space, 73:12, doi:10.1186/s40623-020-01340-w, 2021.
  
  
  
  
  
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