Risk Evaluation and Disaster Mitigation Research Division
Disaster Geo-informatics Lab
Associate Professor

Graduate School of Science
Research Subject(s)
I’m working on the development of technology for the immediate determination of crustal deformation and tsunami magnitude using GNSS, and on the understanding of earthquake generation mechanisms using onshore and offshore geodetic data.
Key Words
Solid earth geophysics / GNSS / Tsunami early warning
Selected Works

Ohta, Y., T. Kobayashi, H. Tsushima, S. Miura, R. Hino, T. Takasu, H. Fujimoto, T. Iinuma, K. Tachibana, T. Demachi, T. Sato, M. Ohzono, and N. Umino (2012), Quasi real-time fault model estimation for near-field tsunami forecasting based on RTK-GPS analysis: Application to the 2011 Tohoku-Oki Earthquake (Mw 9.0), J. Geophys. Res., 117, B0231116, doi:10.1029/2011JB008750.

Ohta, Y., and M. Iguchi (2015), Advective diffusion of volcanic plume captured by dense GNSS network around Sakurajima volcano: a case study of the vulcanian eruption on July 24, 2012, Earth, Planets and Space, 67(1), 157, doi:10.1186/s40623-015-0324-x.

Ohta Y., T. Inoue, S. Koshimura, S. Kawamoto, and R. Hino (2018), Role of real-time GNSS in near-field tsunami forecasting, J. Disaster Res., Vol. 13, No. 3, pp. 453-459.

Selected Awards
  • Japan Open Innovation Prize(2019)
  • The Commendation for Science and Technology by the Minister of Education, Culture, Sports, Science and Technology The Young Scientists' Prize(2017)
  • The Ichimura Prize in Science for Distinguished Achievement(2017)
  • 23th The Tsuboi Prize of the Geodetic Society of Japan (Individual Prize)(2015)
  • 2011 Young Researcher's Award, Seismological Society of Japan(2012)