YOSHIMOTO, Kazuo
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Curriculum Vitae

Born: July 18, 1967
Education: Ph.D. Science, Tohoku University, 1995
Professional Experience:
Postdoctoral Research Associate, University of Tokyo, 1995-1996
Research Associate, Tohoku University, 1996 - 2003
Associate Proffesor, Yokohama City University, 2003-2012
Proffesor, Yokohama City University, 2012-


Research Interests

My recent research focuses on the seismological investigation of the lithospheric structure and the regional tectonics of the island arc. These research subjects are directly related to the understanding of the tectonic evolution of subduction zone. As well as the planning of filed seismic observations, I am working on developing new methods that utilize high-frequency seismic signals of regional earthquakes to reveal the short-wavelength heterogeneity in the earth.


Publications

Takemura, S., M. Kobayashi, and K. Yoshimoto, 2016,
Prediction of maximum P- and S-wave amplitude distributions incorporating frequency- and distance-dependent characteristics of the observed apparent radiation patterns, Earth Planets and Space, 68:166 doi: 10.1186/s40623-016-0544-8.

Yoshimoto, K., S. Takemura, and M. Kobayashi, 2015,
Application of scattering theory to P-wave amplitude fluctuations in the crust, Earth Planets and Space, 67:199 doi:10.1186/s40623-015-0366-0.

Takemura, S., K. Yoshimoto, and T. Tonegawa, 2015,
Scattering of trapped P and S waves in the hydrated subducting crust of the Philippine Sea plate at shallow depths beneath the Kanto region, Japan, Geophys. J. Int., 203, 2261–2276, doi:10.1093/gji/ggv423.

Kobayashi, M., S. Takemura, and K. Yoshimoto, 2015,
Frequency and distance changes in the apparent P-wave radiation pattern: effects of seismic wave scattering in the crust inferred from dense seismic observations and numerical simulations, Geophys. J. Int., 202, 1895–1907, doi:10.1093/gji/ggv263.

Takemura, S., K. Yoshimoto, and T. Tonegawa, 2015,
Velocity increase in the uppermost oceanic crust of subducting Philippine Sea plate beneath the Kanto region due to dehydration inferred from high-frequency trapped P waves, Earth Planets and Space, 67:41 doi:10.1186/s40623-015-0210-6.

Takemura, S., M. Akatsu, K. Masuda, K. Kajikawa, and K. Yoshimoto, 2015,
Long-period ground motions in a laterally inhomogeneous large sedimentary basin: Observations and model simulations of long-period surface waves in the northern Kanto Basin, Japan, Earth Planets and Space, 67:33 doi:10.1186/s40623-015-0201-7.

Rachman, A. N., T. W. Chung, K. Yoshimoto, and B. Son, 2015,
Separation of intrinsic and scattering attenuation using single event source in South Korea, Bull. Seismol. Soc. Am., 105, doi:10.1785/0120140259.

Rachman, A. N., T. W. Chung, K. Yoshimoto, and S. Yun, 2015,
Direct simulation Monte Carlo method with a focal mechanism algorithm, Exploration Geophysics, http://dx.doi.org/10.1071/EG14116.

Yoshimoto, K. and S. Takemura, 2014b,
A study on the predominant period of long-period ground motions in the Kanto Basin, Japan, Earth Planets Space, 66:100 doi:10.1186/1880-5981-66-100.

Yoshimoto, K. and S. Takemura, 2014a,
Surface wave excitation at the northern edge of the Kanto Basin, Japan, Earth Planets Space, 66:16 doi:10.1186/1880-5981-66-16.

Takemura, S. and K. Yoshimoto, 2014,
Strong seismic wave scattering in the low-velocity anomaly associated with subduction of oceanic plate, Geophys. J. Int., doi: 10.1093/gji/ggu031.

NakaharaAH. and@K. Yoshimoto, 2011,
Radiative transfer of elastic waves in two-dimensional isotropic scattering media: Semi-analytical approach for isotropic source radiation, Earth Planets Space, 63, 459-468.

Chung, T. W., K. Yoshimoto, and S. Yun, 2010,
The Separation of Intrinsic and Scattering Seismic Attenuation in South Korea, Bull. Seismol. Soc. Am., 100, 10.1785/0120100054.

Yoshimoto, K. and M. Okada, 2009,
Frequency-dependent attenuation of S-waves in the Kanto region, Japan, Earth Planets Space, 61, 1067-1075.

Chung, T. W., J. M. Lees, K. Yoshimoto, E. Fujita, and Motoo Ukawa, 2009
Intrinsic and scattering attenuation of the Mt Fuji Region, Japan, Geophys. J. Int., 177, doi: 10.1111/j.1365-246X.2009.04121.x.

Yoshimoto, K. and A. Jin, 2008,
Coda energy distribution and attenuation, Advances in geophysics, vol. 50 "Earth heterogeneity and scattering effects on seismic waves (Editors, Sato and Fehler)", chapter 10, Elsevier.

Furusawa, Y., A. Hasemi, and K. Yoshimoto, 2008,
The detailed hypocenter distribution around the active fault - Examples of the source region of the 2004 Mid-Niigata Prefecture Earthquake before the main shock occurrence and the southern parth of the Yamagata Basin fault zone -, Zisin 2, 61, 1-10, in Japanese.

Iidaka, T., T. Iwasaki, and K. Yoshimoto, 2006,
Non-transparent uppermost mantle in the island-arc region of Japan, Tectonophysics, 420, 189-204.

Nakajima, J., A. Hasegawa, S. Horiuchi, K. Yoshimoto, T. Yoshida, and N. Umino, 2006,
Crustal heterogeneity around the Nagamachi-Rifu fault, northeastern Japan, as inferred from travel-time tomography, Earth Planets Space, 58, 843-853.

Yoshimoto, K., U. Wegler, and M. Korn, 2006,
A volcanic front as a boundary of seismic-attenuation structures in northeastern Honshu, Japan, Bull. Seismol. Soc. Am., 96, 10.1785/0120050085.

Yoshimoto, K., H. Fujisawa, T. Okada, N. Umino, A. Hasegawa, K. Obara, K. Shiomi, H. Tsukahara, S. Okamoto, T. Kawanaka, H. Sato, T. Nishimura, H. Sato, and M. Ohtake, 2004,
Moho and Philippine Sea plate structure beneath central Honshu Island, Japan, from teleseismic receiver functions, Earth Planets Space, 56, 1271-1277.

Nishimura, T., K. Yoshimoto, T. Ohtaki, K. Kanjo, and I. Purwana, 2002,
Spatial distribution of lateral heterogeneity in the upper mantle around the western Pacific region as inferred from analysis of transverse components of teleseismic P-coda, Geophys. Res. Let., 29, 10.1029/2002GL015606.

Uchida, N., T. Nishimura, K. Yoshimoto, H. Nakahara, H. Sato, M. Ohtake, S. Tanaka, and H. Hamaguchi, 2002,
Temporal change of seismic-wave velocity associated with the 1998 northern Iwate Prefecture, Japan earthquake, Zisin 2, 55, 193-206, in Japanese.

Horiuchi, S., H. Negishi, J. Uchida, M. Kuchiishi, N. Umino, T. Matsuzawa, T. Okada, A. Hasegawa, and K. Yoshimoto, 2002,
Development of high sampling frequency seismic observation system, Zisin 2, 55, 217-222, in Japanese.

Matsumoto, S., K. Obara, K. Yoshimoto, T. Saito, A. Ito, and A. Hasegawa, 2001,
Temporal change in P-wave scatterer distribution associated with the M6.1 earthquake near Iwate volcano, northeastern Japan, Geophys. J. Int., 145, 48-58.

Yoshimoto, K., 2001,
The born approximation in the study of the scattering of seismic waves and its application to coda wave analysis, Zisin 2, 54, 147-158, in Japanese.

Yoshimoto, K., T. Okada, and A. Hasegawa, 2001,
Seismic obserbation around the Nagamachi-Rifu fault by using semi-broadband seismometers, Gekkan-Chikyuu, 23, 355-359, in Japanese.

Yoshimoto, K. and R. S. Wu, 2001,
Scattering and intrinsic attenuation of S waves in southern California, Proceedings of the 5th SEGJ International Symposium -Imaging Technology-, Tokyo, Japan, 127-130.

Yoshimoto, K., N. Uchida, H. Sato, M. Ohtake, N. Hirata, and K. Obara, 2000,
Microseismicity around the Nagamachi-Rifu fault, Miyagi Prefecture, Northeastern Japan, Zisin 2, 52, 407-416, in Japanese.

Yoshimoto, K., 2000,
Monte-Carlo simulation of seismogram envelope in scattering media, J. Geophys. Res., 105, 6153-6161.

Matsumoto, S., K. Obara, K. Yoshimoto, T. Saito, A. Hasegawa, and A. Ito, 1999,
Imaging of inhomogeneous structure of the crust beneath Ou backbone range, northeastern Japan, based on small aperture seismic array observations, Zisin 2, 52, 283-297, in Japanese.

Yoshimoto, K., H. Sato, Y. Iio, H. Ito, T. Ohminato, and M. Ohtake, 1998,
Frequency-dependent attenuation of high-frequency P- and S-waves in the upper crust in western Nagano, Japan, Pure and Applied Geophysics, 153, 489-502.

Yoshimoto, K., H. Sato, and M. Ohtake, 1997,
Short-wavelength crustal heterogeneities in the Nikko area, central Japan, revealed from the three-component seismogram envelope analysis, Phys. Earth Planet. Inter., 104, 63-73.

Yoshimoto, K., H. Sato, and M. Ohtake, 1997,
Three-component seismogram envelope synthesis in randomly inhomogeneous semi-infinite media based on the single scattering approximation, Phys. Earth Planet. Inter., 104, 37-61.

Yoshimoto, K., N. Hirata, T. Iidaka, M. Sekine, M. Shinohara, and E. Kurashimo, 1997,
Aftershock distribution of the 1995 Hyogo-ken Nanbu Earthquake beneath the Awaji-shima island: relation between aftershock distributions and active faults, Zisin 2, 50, 251-257, in Japanese.

Yoshimoto, K., H. Sato, and M. Ohtake, 1993,
Frequency-dependent attenuation of P and S waves in the Kanto area, Japan, based on the coda-normalization method, Geophys. J. Int., 114, 165-174.

Yoshimoto, K., H. Sato, S. Kinoshita, and M. Ohtake, 1993,
High-frequency site effect of hard rocks at Ashio, central Japan, J. Phys. Earth, 41, 327-335.