Research Papers in English

Articles

2006

Nakano, M., Miyakoshi, J. and Yamaoka, K.: A new model for the fault beneath sedimentary basin in the 1989 Nobi earthquake. Earth Planet Space, in press.

Saiga, A., Yamaoka, K., Kkunitomo, T. and Watanabe, T.: Continuous observation of seimic wave velocity and apparent velocity using a precise seismic array and ACROSS seismic source. Earth Planet Space, in press.

Kawamura,M and Yamaoka,K: Spatiotemporal characteristics of the displacement field revealed with principal component analysis and the mode-rotation techinique. Tectonophys, 419, 55-73, 2006.

2005
Yamaoka,K. , Kudo, T., Kawamura, M., Kimata F. and Fujii, N: Dike intrusion associate with the 2000 eruption of Miyakejima volcano, Japan. Bull. Volcanology, 67:231-242, 2005.

2004
Ikuta R. and Yamaoka K.: Temporal variation in the shear wave anisotropy detected using Accurately Controlled Routinely Operated Signal System (ACROSS). J. Geophys. Res., 109, B09305, doi:10.1029/2003JB002901, 2004.

2003
Lin,C.H., Ando,M., Fujii,N., Yamaoka,K., Tadokoro,K., Jin A.S., Obara,K. and Ishida,M.: Anomalous seismograms generated by an intemediate-depth eartquake: unusual scattering source in the upper mantle of central Japan. Geophys. Res. Lett., 30,1586,doi:10.1029/2002GL016837, 2003.

Kudo,T. and Yamaoka,K: Pull-down basen in the central part of Japan due to subduction-induced mantle flow. Tectonophysics, 367, 203-217, 2003.

Saiga, A., Hiramatsu, Y., Ooida, T. and Yamaoka, K. :Spatial variation in the crustal anisotropy and its temporal variation associated with the moderate size earthquake in the Tokai region, central Japan. Geophys. Jour. Int., 154, 695-705, 2003.

2002

Yamaoka, K., Ikuta, R., Miyakawa, K., Kunitomo, T. and Kumazawa, M.: A precise method for monitoring the temporal variation of wave propagation. in (Ogasawara, Ando, Yanagitani ed.) Seismogenic Process Monitoring :Experimental and Mining Seismology , Balkema Publisher, 379-397, 2002.

Ikuta, R., Yamaoka, K., Miyakawa, K., Kunitomo, T. and Kumazawa, M.: Continuous monitoring of Propagation velocity of seismic wave using ACROSS. Geophys. Res. Lett., 29, 10.1029/2001GL013974, 2002.

2001

Yamaoka,K., Kunitomo, T., Miyakawa, K., Kobayashi, K. and Kumazawa, M.: A Trial for Monitoring Temporal Variation of Seismic Velocity with ACROSS System. Island Arc, 10, 336-347, 2001.

1999
Yamaoka, K., Ooida T. and Ueda, Y.: Detailed distribution of accelerating foreshocks before a M5.1 earthquake in Japan. PAGEOPH, 155, 335-353, 1999.

1998

Nakano M., Kumagai H., Kumazawa M., Yamaoka K., and Chouet B.: The excitation and characteristic frequency of the long-period volcanic event: An approach based on an inhomogeneous autoregressive model of a linear dynamic system. J. Geophys. Res., 103, 10031-10046, 1998.

1996

Hirahara K. et al. : GPS Observation of Post-Seismic Crustal Movements in the Focal Region of the 1995 Hyogo-ken Nanbu Earthquake -Static and Real-time Kinematic GPS Observations -, J. Phys. Earth, 44, 301-315, 1996.

Kato, T. et al. : Post-seismic crustal deformation associated with the 1995 Hyogo-ken Nanbu Earthquake derived from GPS Observation -Preliminary Analysis of Trimble Data - , J. Phys. Earth, 44, 287-299, 1996.

1994
Oikawa, J., Ida, Y. and Yamaoka K. Source spectrum and source time function of volcanic tremor determined with a dense seismic network near the summit crater of Izu-Oshima volcano, Japan. J. Geophys. Res., 99, 9523-9532, 1994.

1993

Yamaoka, K. State of Stress and Magma Movement Inferred from Seismic Activity durin 1986-1987 Eruption of Izu-Oshima Volcano., in Proceedings of the Workshop on Volcanic Disaster Prevention. 248-250. 1993.

1992
Furumoto,M. Kunitomo,T. Inoue,H. and Yamaoka,K. : Seismic Image of the Volcanic tremor source at Izu-Oshima Volcano, Japan. In: Volcanic Seismology (Edited by Gasparini et al.), Springer-Verlag.　201-211, 1992.

1991
Oikawa, J., Ida, Y., Yamaoka, K., Watanabe, H., Fukuyama, E., Sato, K. : Ground deformation associated with volcanic tremor at Izu-Oshima volcano. Geophys. Res. Lett., vol.18, 443-446, 1991.

Yamaoka, K., Oikawa, J., and Ida. Y. : An isotropic source of volcanic tremor -Observation with a dense seismic network at Izu-Oshima volcano, Japan. J. Volcanol. Gephys. Res., vol.47, 329-336, 1991.

1990

Furumoto, M., Kunitomo, T., Inoue, H., Yamada, I., Yamaoka, K., Ikami, A., Fukao, Y.: Twin sources of volcanic tremor of Izu-Oshima volcano Japan. Geophys. Res. Let., vol. 17, 25-27, 1990.

1988
Yamaoka, K., Spherical shell tectonics: on the buckling of the lithosphere at subduction zones. Tectonophys., vol. 147, 179-191, 1988.

1987
Yamaoka, K., Fukao, Y. and Kumazawa, M. , Spherical Shell Tectonics and the Evolution of Subduction Zones. In: Composition, Structure, and Dynamics of the Lithosphere System. ed. by K. Fucks and C Froidevaux, Geodynamic series vol. 16, AGU, 205-218, 1987.

Yamaoka, K. and Fukao, Y., Why do island arcs form cusps at their junctions? Geology, vol. 15, 34-36, 1987.

Fukao, Y., Yamaoka, K. and Sakurai, T., Spherical shell tectonics: buckling of subducting lithosphere. Phys. Earth Planet. Int., vol. 45, 59-67, 1987.

1986
Yamaoka, K., Fukao, Y. and Kumazawa, M., Spherical Shell Tectonics: Effects of Sphericity and Inextensibility on the Geometry of the Descending Lithosphere. Rev. Geophys., vol. 24, 27-53, 1986.
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1985
Inoue, H. and Yamaoka K. Three-dimensional Miniature of Earthquake Distribution. Tectonophys., vol. 122, 115-122, 1985.

1983
Fukao, Y. and Yamaoka, K., Stress Estimate for the Highest Mountain System in Japan. Tectonics, vol.2, 453-471, 1983.

Proceedings etc.

2005

Yamaoka, K., Doi, K. and Suhara, S: Education on the Earthqukake Disaster Reduction for International Students in Japan. Proceedings of the International workshop on the restoration program from giant earthquakes and tsunamis - Part 1 of the Memorial Conference on the 2004 Giant Earthquake and Tsunami in the Indian Ocean- Dec, 14-15, 2005. Tokyo, Japan.

Yamaoka, K.: Strategy of earthquake prediction research in Japan and the role of active monitoring. Proceedings of the 2nd international workshop on Active Monitoring in the Solid Earth Geophysics, 12-16 September 2005, Novosibirsk, Russia.

2004

Kasahara, J., Tsuruga, K., Hadasa, Y., Yamaoka, K., Fujii, N., Yoshida, Y., Kunitomo, T. and M. Kumazawa: A proposal of imaging of the plate boundary using the active monitoring method. Proceedings of 1st International Workshop on Active Monitoring in the Solid Earth Geophysics, June 30 - July 2, 44-48, 2004.

Ikuta, R. and Yamaoka, K: Temporal variation in the shear wave anisotropy. Proceedings of 1st International Workshop on Active Monitoring in the Solid Earth Geophysics, June 30 - July 2, 83-87, 2004.

Saiga, A., Yamaoka, K., Watanabe, T. and Kunitomo, T.: Continuous observation of travel time of seismic wave using the ACROSS and the seismic array at 2.4km distance. Proceedings of 1st International Workshop on Active Monitoring in the Solid Earth Geophysics, June 30 - July 2, 123-125, 2004.

Yamaoka, K. and Ikuta R.: Feasibility of Reflection Monitoring for Plate Coupling using ACROSS system. Proceedings of 1st International Workshop on Active Monitoring in the Solid Earth Geophysics, June 30 - July 2, 126-129, 2004.