Centers & Labs

RIKEN Center for Computational Science

Computational Disaster Mitigation and Reduction Research Team

Team Leader: Satoru Oishi (D.Eng.)
Satoru  Oishi(D.Eng.)

Computational disaster mitigation and reduction research unit is aimed at advancing large-scale numerical simulation for natural disasters such as earthquake, tsunami and heavy rain, targeting Kobe City and other urban areas in Hyogo Prefectures. Beside for the construction of a sophisticated urban area model and the development of new numerical codes, the unit seeks to be a bridge between Science and Local Government for the disaster mitigation and reduction.

Main Research Field

Complex systems

Related Research Fields

Mathematical and physical sciences / Engineering


  • Automatic Urban Structure Modeling
  • Liquefaction Simulation
  • Engineering application of meteorology (communication of forecast, damage estimation, insurance)
  • Simulation of Hydrology, River Discharge and Sediment Transportation

Selected Publications

Papers with an asterisk(*) are based on research conducted outside of RIKEN.
  1. Chen, J., Supprasert, S., O-tani, H., Fujita, K., Wijerathne, L. and Hori, M.:
    "On elastic waves in granular assemblies: from a continuumnization viewpoint"
    Mechanics of Materials, 109, 101–113, (2017).
  2. Hori, M., Wijerathne, L., Chen, J. and Ichimura, T.:
    "Continuumnization Of Regularly Arranged Rigid Bodies"
    Journal of JSCE, 4(1), 38-45, (2016).
  3. Chen, J., Takeyama, T., O-tani, H., Fujita, K. and Hori, M.:
    "A Framework for Assessing Liquefaction Hazard for Urban Areas Based on Soil Dynamics"
    International Journal of Computational Methods, 13, 1641011, (2016).
  4. Isshiki, M., Asai, M., Eguchi, S. and O-tani, H.:
    "3D Tsunami Run-Up Simulation and Visualization Using Particle Method With GIS-Based Geography Model"
    Journal of Earthquake and Tsunami, 10, 1640020, (2016).
  5. *Syarifuddin, M., Oishi, S., Legono, D.:
    "Lahar Flow Simulation in Merapi Volcanic Area by HyperKANAKO Model"
    Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering), 72(4), I_865-I_870 , (2016).
  6. Chen, J., O-tani, H. and Hori, M.:
    "Stability analysis of soil liquefaction using a finite element method based on particle discretization scheme"
    Computers and Geotechnics, 67, 64–72, (2015).
  7. *Oishi, S., Masuda, H.:
    "Study on Optimization of the Integrated Operation of Dams using Ensemble Prediction"
    International Conference on Hydroinformatics, (2014).
  8. Ichimura, T., Fujita, K., Tanaka, S., Hori, M., Lalith, M., Shizawa, Y., Kobayashi, H.:
    "Physics-Based Urban Earthquake Simulation Enhanced by 10.7 BlnDOF x 30 K Time-Step Unstructured FE Non-Linear Seismic Wave Simulation"
    Proceedings of SC’14 (Gordon Bell Finalist), p.15-26, doi:10.1109/SC.2014.7, (2014).
  9. *Hapsari, R.I., Oishi, S., Sunada, K., Sano, T., Sisinggih, D.:
    "Ensemble short-term rainfall-runoff prediction and its application in urban flood risk mapping"
    IAHR Red Book, (2013).
  10. Otani, H., Chen, J. and Hori, M.:
    "Smart Visualization of Urban Earthquake Simulation"
    Journal of Japan Society of Civil Engineers, Ser. A1, 69(4), I_95-I_101, (2013).

Lab Members

Principal Investigator

Satoru Oishi
Team Leader

Core Members

Muneo Hori
Senior Visiting Scientist
Hideyuki O-Tani
Research Scientist
Yasuyuki Nagano
Senior Visiting Scientist
Masaaki Yabe
Senior Visiting Scientist
Tomohide Takeyama
Visiting Scientist
Tsuyoshi Ichimura
Visiting Scientist
Lalith Maddegedara
Visiting Scientist
Kohei Fujita
Visiting Scientist
Hiroki Motoyama
Visiting Scientist
Jian Chen
Visiting Scientist
Kazuki Yamanoi
Visiting Scientist