Welcome To My Home Page: Toshiaki Yokoi


Self introduction

Name: Toshiaki Yokoi, Dsc.
Research field: Applied Seismology
Position:Senior Research Scientist
e-mail: tyokoi@kenken.go.jp


Education

1982 Graduated from Faculty of Science, Kyoto Univ. (Department of Geophysics),
1984 Graduated from Master Course, Graduate School of Science, Kyoto Univ. (Applied Seismology).
1996 Dissertation Doctor (Applied Seismolgy) from Graduate School of Science, Kyoto Univ.

Research Subject

Applied Seismology (Wave Propagation, Strong Motion Study, Site & Source Effects on Seismic Motion, Geophysical Exploration including Microtremor Method).

Publications

Reviewed papers (1991-Present):

  1. Margaryan, S. & T. Yokoi (2009): Experiments on the Stability of the SPAC and Linear Array Methods and on the Imaginary Part of the SPAC Coefficients As an Indicator of the Quality of Data, Exploration Geophysics, Vol. 40, p1-10.
  2. Yokoi, T. & S. Margaryan (2008): Consistency of Spatial Autocorrelation Method with The Seismic Interferometry and Its Consequence, Geophysical Prospecting, Vol. 35, 435-451.
  3. Yokoi, T. & S. Margaryan (2008): Re-Checking Spatial Auto Correlation Method Based on the Theory of Seismic Interferometry, BUTURI-TANSA, Vol. 61, p87-100 (in Japanese with English Abstract).
  4. Yokoi, T. (2003): The higher order Born approximation applied to improve the solution of seismic response of a three-dimensional canyon computed by the indirect boundary method, Phys. Earth Planet. Int., Vol. 137, p97-106.
  5. T. Yokoi and D. Suetsugu (2003): Across the borders: Present, Past, and Future of the Training Courses for Developing Countries held by the international institute of seismology and earthquake engineering (IISEE), Seism. Res. Let., Vol. 74, p536-544..
  6. Yokoi, T. (2002): Reflection and transmission operator for irregular interfaces derived from the indirect boundary element method, Geophys. J. Int., Vol. 148, p88-102.
  7. Yokoi, T. & F. J. Sanchez-Sesma (1998): A hybrid calculation technique of the indirect boundary element method and the analytical solutions for three-dimensional problems of topography, Geophys. J. Int., Vol. 133, p121-139.
  8. Yokoi, T. (1998): A simple formulation for calculation of seismic response of alluvial basin by indirect boundary method, The Effect on Surface Geology on Seismic Motion, Irikura, Kudo, Okada & Sasatani (eds), Belkema, Rotterdam, 1998.
  9. Yokoi, T.(1996): A latter phase detected by tripartite observation at Sumiyoshi, Kobe, J. Phys. Earth, Vol. 44, p601-611.
  10. Yokoi, T.(1996): Numerical study on the generation of down going S-waves by a vertical force acting close to a step-like topography, Geophysics, Vol. 61, p192-201.
  11. Yokoi, T. (1996): An indirect boundary element method based on recursive matrix operation to compute waves in irregularly stratified media with infinitely extended interfaces, J. Phys. Earth, Vol. 44, p 39-60.
  12. Yokoi, T. (1996): Simulation for Seismic Response of Irregularly Stratified Media by Indirect Boundary Element Method, BUTURI-TANSA, Vol.49, p549-561(in Japanese with English Abstract).
  13. Yokoi, T. & H. Takenaka (1995): Treatment of an infinitely extended free surface for indirect formulation of the boundary element method, J. Phys. Earth, Vol. 43, p79-103.
  14. Yokoi, T. (1994): A Formulation of Discrete Wave Number - Boundary Integral Equation Method Using Sommerfeld Integral in Three Dimensional Elastic Problem, Zisin, Ser. 2, Vol.46, p381-393 (in Japanese with English Abstract).
  15. Kitsunezaki, C., T. Yokoi, K. Okuzumi & N. Goto(1994): SH-wave generation by a vertical force applied close to a pit, First Break, Vol. 12, p99-105.
  16. Kitsunezaki, C., T. Yokoi, N. Goto, S. Hatakeyama and K. Suzuki (1992): SH-wave generation from vertical force -Subsurface Condition and the Generation Characteristics-, BUTURI-TANSA, VOl.45, p377-391.
  17. Yokoi, T. & K. Irikura (1991): Empirical Green's Function Technique Based on the Scaling Law of Source Spectra, Zisin, Ser.2, Vol.44, p109-122, (in Japanese with English Abstract).

Conference Papers(2008-Present):

  1. Yokoi, T. (2009): Correlation Method Revisited with a Consequence of Seismic Interferometry, Proceedings of Six International Conference on Urban Earthquake Engineering, Tokyo.
  2. Dayra Yessenia Blandon Sandino, Toshiaki Yokoi, Koichi Hayashi (2008): Estimation of Shear Wave Velocity Structure and Ground Classification Using Array Observation of Short Period Microtremor in Koshigaya City, Japan, Proceedings of the 6th Annual Meeting of Japan Association for Earthquake Engineering, Sendai.
  3. Yokoi, T. (2008): Numerical Experiment about the Effect of the 1st Higher Normal Mode on the Rayleigh Wave's dispersion Curve Determined from Microtremor Array Observation and Correlation Analysis, Proceedings of the 6th Annual Meeting of Japan Association for Earthquake Engineering, Sendai (in Japanese).
  4. Yokoi, T. (2008): Dual Mode Inversion for Dispersion Curve of Rayleigh Wave based on a consequence of Seismic Interferometry, Proceedings of the 119th SEGJ Conference, Tokyo (in Japanese with English Abstract).
  5. Saito, T., N. Hurukawa, T. Yokoi, T. Hara, B. Shibasaki, Y. Fujii, S. Koyama, T. Kashima, & T. Mukai (2008): Training System and Information Network for Earthquake Disaster Mitigation, Proceedings of the 14th World Conference of Earthquake Engineering, Beijing.
  6. Yokoi, T., J. Subedi, R. Rajbhandari, M. B. Prajapati, T. Mori, A. Takubo & M. Niwa (2008): Free GIS Plus Database System for Dissemination Activity of Earthquake Disaster Mitigation, Proceedings of 14th World Conference of Earthquake Engineering, Beijing.
  7. T. Yokoi & S. Margaryan (2008): Interpretation of Spatial Autocorrelation Method Based on the Theory of Seismic Interferometry, Proceedings of the 14th World Conference of Eartrhquake Engineering, Beijing.
  8. Margaryan, S. & T. Yokoi (2008): On the stability of SPAC and Linear array methods, Proceedings of the 14th World Conference of Earthquake Engineering, Beijing.
  9. Yokoi, T. (2008): On the effect of the 1st higher mode on the dispersion curve determined by array observation of microtremor and correlation based analysis - Toward a quantitative estimation -,
  10. Proceedings of the 118th SEGJ Conference, Tokyo (in Japanese with English Abstract).
  11. Yokoi, T. (2008): On Numerical Experiment for the CCA Using Only Three Geophones Simultaneously, Proceedings of the 118th SEGJ Conference, Tokyo (in Japanese with English Abstract).

Presentation (2008-Present)

  1. Yokoi, T.(2009): Information and/or Consideration on: Disaster Management Cycle, Earthquake Prediction in Japan, Earthquake Early Warning, the 2nd JICA Seminar for the Basic Survey of Earthquake Disaster Prevention in Almaty City, Kazakhstan, Almaty.
  2. Yokoi, T. & S. Margaryan (2008): Interpretation of Spatial Autocorrelation Method Based on the Theory of Seismic Interferometry, the 7th General Assembly of Asian Seismological Commission and the 2008 Fall Meeting of Seismological Society of Japan, Tsukuba.
  3. Margaryan, S. & T. Yokoi (2008): On the stability of SPAC and Linear array methods, the 7th General Assembly of Asian Seismological Commission and the 2008 Fall Meeting of Seismological Society of Japan, Tsukuba.
  4. Yokoi, T., J. Subedi, R. Rajbhandari, M. B. Prajapati, T. Mori, A. Takubo & M. Niwa (2008): Free GIS Plus Database System for Dissemination Activity of Earthquake Disaster Mitigation, the 7th General Assembly of Asian Seismological Commission and the 2008 Fall Meeting of Seismological Society of Japan, Tsukuba.
  5. Yokoi, T. (2008): On Comparison of CCA with SPAC Using Simulated Microtremor Records and the CCA Using Only Three Geophones Simultaneously, Abstracts, Japan Geo Science Union Meeting 2008, Chiba.

Last UPDATE : Jul. 15, 2009