• Hirose, T., H. Nakahara and T. Nishimura
    Combined use of repeated active shots and ambient noise to detect temporal changes in seismic velocity: application to Sakurajima volcano, Japan,
    Earth Planets Space, 69:42, doi:10.1186/s40623-017-0613-7, 2017.
  • Pacheco, K., T. Nishimura, and H. Nakahara
    Seismic velocity changes of P and S waves associated with the 2011 Tohoku-Oki earthquake (Mw 9.0) as inferred from analyses of repeating earthquakes,
    Geophys. J. Int., 209, 517-533, doi:10.1093/gji/ggx043, 2017.


  • Nishimura, T., M. Iguchi, M. Hendrasto, H. Aoyama, T. Yamada, M. Ripepe and R. Genco
    Magnitude-frequency distribution of volcanic explosion earthquakes,
    Earth Planets Space, 68:125, doi:10.1186/s40623-016-0505-2, 2016.
  • Fukushima, R., H. Nakahara, and T. Nishimura
    Estimating S-Wave Attenuation in Sediments by Deconvolution Analysis of KiK-net Borehole Seismograms
    Bull. Seismol. Soc. Am., 106, - doi:10.1785/0120150059, 2016.
  • Kozono, T., M. Kusakabe, Y. Yoshida, R. Ntchantcho, T. Ohba, G. Tanyileke, and J. Hell
    Numerical assessment of the potential for future limnic eruptions at Lakes Nyos and Monoun, Cameroon, based on regular monitoring data,
    Geol. Soc. London Special Publication (Geochemistry and Geophysics of Active Volcanic Lakes), 437, doi:10.1144/SP437.8, 2016.
  • Maki, M., M. Iguchi, T. Maesaka, T. Miwa, T. Tanada, T. Kozono, T. Momotani, A. Yamaji, and I. Kakimoto
    Preliminary results of weather radar observations of Sakurajima volcanic smoke,
    J. Disaster Res., 11, 15-30 2016.


  • Emoto, K., M. Campillo, F. Brenguier, X. Briand, and T. Takeda
    Asymmetry of coda cross-correlation function: dependence of the epicentre location,
    Geophys. J. Int., 201, 1313-1323 doi:10.1093/gji/ggv081, 2015.
  • Hillers, G., L. Retailleau, M. Campillo, L. Rivera, T. Nishimura, and K. F. Ma
    In-situ observations of velocity changes in response to tidal deformation from analysis of the high-frequency ambient wave field,
    J. Geophys. Res., 120, 210-225 doi:10.1002/2014JB011318, 2015.
  • Kawaguchi, R., and T. Nishimura
    Numerical investigation of temporal changes in volcanic deformation caused by a gas slug ascent in the conduit,
    J. Volcanol. Geotherm. Res., 302, 1-10 doi:10.1016/j.jvolgeores.2015.06.002, 2015.
  • Miwa, T., T. Shimano, and T. Nishimura
    Characterization of the luminance and shape of ash particles at Sakurajima volcano, Japan, using CCD camera images,
    Bull. Volcanol., 77:5, doi:10.1007/s00445-014-0886-7, 2015.
  • Nakahara, H., and M. Haney
    Point spread functions for earthquake source imaging: An interpretation based on seismic interferometry,
    Geophys. J. Int., 202, 54-61, doi:10.1093/gji/ggv109, 2015.
  • Nakahara, H.
    Auto correlation analysis of coda waves from local earthquakes for detecting temporal changes in shallow subsurface structures: the 2011 Tohoku-Oki, Japan Earthquake,
    Pure Appl. Geophys., 172, 213-224 doi:10.1007/s00024-014-0849-0, 2015.


  • Brenguier, F., M. Campillo, T. Takeda, Y. Aoki, N.M. Shapiro, X. Briand, K. Emoto, and H. Miyake
    Mapping pressurized volcanic fluids from induced crustal seismic velocity drops,
    Science, 345(6192), 80-82 doi:10.1126/science.1254073, 2014.
  • Fujita, E., T. Kozono, N. Toda, A. Kikuchi, and Y. Ida
    Quasi-static stress change around Mount Fuji region due to Tohoku mega-thrust earthquake.
    J. Diaster Res., 9, 365-372, 2014.
  • Haney, M., and H. Nakahara
    Surface wave Green's tensors in the near-field,
    Bull. Seismol. Soc. Am., 104, 1578-1586 doi:10.1785/0120130113, 2014.
  • Hobiger, M., U. Wegler, K. Shiomi, and H. Nakahara
    Single-station cross-correlation analysis of ambient seismic noise: Application to stations in the surroundings of the 2008 Iwate-Miyagi Nairiku earthquake,
    Geophys. J. Int., 198, 90-109 doi:10.1093/gji/ggu115, 2014.
  • Kozono, T., H. Ueda, T. Shimbori, and K. Fukui
    Correlation between magma chamber deflation and eruption cloud height during the 2011 Shinmoe-dake eruptions,
    Earth Planets Space, 66:139, doi:10.1186/s40623-014-0139-1, 2014.
  • Kozono, T.
    A study of eruption mechanisms based on modeling of conduit flow dynamics (in Japanese).
    Kazan, 59(1), 13-23, 2014.
  • Miyagi, Y, T. Ozawa, T. Kozono, and M. Shimada
    Long-term lava extrusion after the 2011 Shinmoe-dake eruption detected by DInSAR observations,
    Geophys. Res. Lett., 41, 5855-5860 doi:10.1002/2014GL060829, 2014.
  • Takagi, R., H. Nakahara, T. Kono, and T. Okada
    Separating body and Rayleigh waves with cross terms of the cross-correlation tensor of ambient noise,
    J. Geophys. Res., 119, 2005-2018 doi:10.1002/2013JB010824, 2014.
  • Takano, T., T. Nishimura, H. Nakahara, Y. Ohta, and S. Tanaka
    Seismic velocity changes caused by the Earth tide: Ambient noise correlation analyses of small-array data,
    Geophys. Res. Lett., 41, 6131-6136 doi:10.1002/2014GL060690, 2014. (Student Paper)


  • Emoto, K., H. Sato, and T. Nishimura
    Envelope Synthesis of a Cylindrical Outgoing Wavelet in Layered Random Elastic Media Based on the Markov Approximation.
    Geophys. J. Int., 194, 899-910 doi: 10.1093/gji/ggt125, 2013. (Student Paper)
  • Fujita, E., T. Kozono, H. Ueda, Y. Kohno, S. Yoshioka, N. Toda, A. Kikuchi, and Y. Ida
    Stress field change around the Mount Fuji volcano magma system caused by the Tohoku megathrust earthquake, Japan.
    Bull. Volcanol., 75, 679 doi: 10.1007/s00445-012-0679-9, 2013.
  • Kawaguchi, R., T. Nishimura, and H. Sato
    Volcano inflation prior to an eruption: Numerical simulations based on a 1-D magma flow model in an open conduit.
    Earth Planets Space, 65, 1477-1489 doi: 10.5047/eps.2013.05.005, 2013. (Student Paper)
  • Kozono, T., H. Ueda, T. Ozawa, T. Koyaguchi, E. Fujita, A. Tomiya, and Y.J. Suzuki
    Magma discharge variations during the 2011 eruptions of Shinmoe-dake volcano, Japan, revealed by geodetic and satellite observations.
    Bull. Volcanol., 75, 695 doi:10.5047/eps.2013.03.001, 2013.
  • Maeno, F., S. Nakada, M. Nagai, and T. Kozono
    Ballistic ejecta and eruption condition of the vulcanian explosion of Shinmoedake volcano, Kyushu, Japan on 1 February, 2011.
    Earth Planets Space, 65, 609-621 doi: 10.5047/eps.2013.03.004, 2013.
  • Nakahara, H.
    Envelope inversion analysis for high-frequency seismic energy radiation from the 2011 off the Pacific coast of Tohoku earthquake (Mw 9.0).
    Bull. Seismol. Soc. Am., 103, 1348-1359 doi:10.1785/0120120155, 2013. [ reprint ]
  • Nishimura, T., M. Iguchi, H. Yakiwara, J. Oikawa, R. Kawaguchi, H. Aoyama, H. Nakamichi, Y. Ohta, and T. Tameguri.
    A mechanism of small vulcanian eruptions at Suwanosejima volcano, Japan, as inferred from precursor inflations and tremor signals.
    Bull. Volcanol., 75(12), 1-12 doi:10.1007/s00445-013-0779-1, 2013.
  • Ozawa, T., and T. Kozono
    Temporal variation of the Shinmoe-dake crater in the 2011 eruption revealed by spaceborne SAR observations.
    Earth Planets Space, 65, 527-537 doi: 10.5047/eps.2013.05.004, 2013.
  • Shimano, T., T. Nishimura, N. Chiga, Y. Shibasaki, M. Iguchi, D. Miki, and A. Yokoo
    Development of an automatic volcanic ash sampling 1 apparatus for active volcanoes.
    Bull. Volcanol., 75, 773 doi: 10.1007/s00445-013-0773-7, 2013.
  • Tsutusi, T., N. Yagi, M. Iguchi, T. Tameguri, H. Mikada, K. Onishi, H. Miyamachi, T. Nishimura, Y. Morita, and A. Watanabe
    Structure of Northeastern Sakurajima, South Kyushu, Japan, Revealed by Seismic Reflection Survey.
    Bull. Volcanol. Soc. Jpn., 58(1), 239-250 2013.
  • Ueda, H., T. Kozono, E. Fujita, Y. Kohno, M. Nagai, Y. Miyagi, and T. Tanada
    Crustal deformation associated with the 2011 Shinmoe-dake eruption as observed by tiltmeters and GPS.
    Earth Planets Space, 65, 517-525 doi: 10.1007/s00445-013-0695-4, 2013.


  • Nakahara, H.
    Formulation of the spatial auto-correlation (SPAC) method in dissipative media.
    Geophys. J. Int., 190, 1777-1783 doi: 10.1785/0120120155, 2012. [ reprint ]
  • Anggono, T., T. Nishimura, H. Sato, H. Ueda,and M. Ukawa
    Spatio-temporal changes in seismic velocity associated with the 2000 activity of Miyakejima volcano as inferred from cross-correlation analyses of ambient noise.
    J. Volcanol. Geotherm. Res., 247-248, 93-107 doi: 10.1016/j.jvolgeores.2012.08.001, 2012. (Student Paper)
  • Nishimura, T.
    Heterogeneity of the Japanese islands as inferred from transverse component analyses of teleseismic P-waves observed at a seismic station network, Hi-net.
    Earth Planets Space, 64, e25-e28 doi: 10.5047/eps.2012.10.001, 2012.
  • Kozono, T., and T. Koyaguchi
    Effects of gas escape and crystallization on the complexity of conduit flow dynamics during lava dome eruptions.
    J. Geophys. Res., 117, B08204 doi: 10.1029/2012JB009343, 2012.
  • Nishimura, T., M. Iguchi, R. Kawaguchi, Surono, M. Hendrasto, U. Rosadi
    Inflations prior to vulcanian eruptions and gas bursts detected by tilt observations at Semeru Volcano, Indonesia.
    Bull. Volcanol., 74, 903-911 doi: 10.1007/s00445-012-0579-z, 2012.
  • Iguchi, M., Surono, T. Nishimura, M. Hendrasto, U. Rosadi, T. Ohkura, H. Triastuty, A. Basuki, A. Loeqman, S. Maryanto, K. Ishihara, M. Yoshimoto, S. Nakada, and N. Hokanishi
    Methods for eruption prediction and hazard evaluation at Indonesian volcanoes.
    J. Disas. Res., 7, 26-36 , 2012.
  • Miwa, T. and N. Geshi
    Decompression rate of magma at fragmentation: Inference from broken crystals in pumice of vulcanian eruption.
    J. Volcanol. Geotherm. Res., 227-228, 76-84 doi: 10.1016/j.jvolgeores.2012.03.003, 2012.
  • Mikesell, T. D., K. van Wijk, T. E. Blum, R. Snieder, and H. Sato
    Analyzing the coda from correlating scattered surface waves.
    J. Acoust. Soc. Am., 131(3), EL275-EL281 doi: 10.1121/1.3687427, 2012.
  • Emoto, K., H. Sato, and T. Nishimura
    Synthesis and applicable condition of vector wave envelopes in layered random elastic media with anisotropic autocorrelation function based on the Markov approximation.
    J. Geophys. Res., 188(1), , 325-335 doi: 10.1111/j.1365-246X.2011.05264.x, 2012. (Student Paper)
  • Haney, M. M., T. D. Mikesell, K. van Wijk, and H. Nakahara
    Extension of the spatial autocorrelation (SPAC) method to mixed-component correlations of surface waves.
    Geophys. J. Int., 191, 189-206 doi: 10.1111/j.1365-246X.2012.05597.x, 2012.
  • Takagi, R., T. Okada, H. Nakahara, N. Umino, and A. Hasegawa
    Coseismic velocity change in and around the focal region of the 2008 Iwate-Miyagi Nairiku earthquake.
    J. Geophys. Res., 117, B06315 doi: 10.1029/2012JB009252, 2012.


  • Margerin, L. and H. Sato
    Generalized optical theorems for the reconstruction of Green's function of an inhomogeneous elastic medium.
    J. Acoust. Soc. Am., 130(6), 3674-3690 doi: 10.1121/1.3652856, 2011.
  • Nakahara, H. and L. Margerin
    Testing equipartition for S-wave coda using borehole records of local earthquakes.
    Bull. Seismol. Soc. Am., 101(5), 2243-2251 doi: 10.1785/0120100353, 2011.
  • Nakahara, H., H. Sato, T. Nishimura, and H. Fujiwara
    Direct observation of rupture propagation during the 2011 off the Pacific coast of Tohoku Earthquake (Mw 9.0) using a small seismic array.
    Earth Planets Space, 63(7), 589-594 doi: 10.5047/eps.2011.06.002, 2011.
  • Nakahara, H., and K. Yoshimoto
    Radiative transfer of elastic waves in two-dimensional isotropic scattering media: Semi-analytical approach for isotropic source radiation.
    Earth Planets Space, 63, 459-468 doi: 10.5047/eps.2011.03.006, 2011.
  • Sawazaki, K., H. Sato, and T. Nishimura
    Envelope synthesis of short-period seismograms in 3-D random media for a point shear dislocation source based on the forward scattering approximation: Application to small strike-slip earthquakes in southwestern Japan.
    J. Geophys. Res., 116, B08305, doi: 10.1029/2010JB008182, 2011. (Student Paper)
  • Nishimura, T. and S. Ueki
    Seismicity and magma supply rate of the 1998 failed eruption at Iwate volcano, Japan.
    Bull. Volcanol., 73, 133-142 doi:10.1007/s00445-011-0468-x, 2011.
  • Margerin, L. and H. Sato
    Reconstruction of multiply-scattered arrivals from the cross-correlation of waves excited by random noise sources in a heterogeneous dissipative medium.
    Wave Motion, 48(2), 146-160 doi: 10.1016/j.wavemoti.2010.10.001, 2011.
  • Kumagai, H., P. Placios, M. Ruiz, H. Yepes, and T. Kozono
    Ascending seismic source during an explosive eruption at Tungurahua volcano, Ecuador.
    Geophys. Res. Lett., 38, L01306, doi: 10.1029/2010GL045944, 2011.


  • Nakahara, H. and E. Carcole
    Maximum-likelihood method for estimating coda Q and the Nakagami-m parameter.
    Bull. Seismol. Soc. Am., 100(6), 3174-3182 doi: 10.1785/0120100030, 2010.
  • Yokoo, A. and M. Iguchi
    Using infrasound waves from eruption video to explain ground deformation preceding the eruption of Suwanosejima volcano, Japan.
    J. Volcanol. Geotherm. Res., 196(3-4), 287-294, doi: 10.1016/j.jvolgeores.2010.08.008, 2010.
  • Aizawa, K., A. Yokoo, W. Kanda, Y. Ogawa, and M. Iguchi
    Magnetotelluric pulses generated by volcanic lightning at Sakurajima volcano, Japan.
    Geophys. Res. Lett., 37, L17301, doi: 10.1029/2010GL044208, 2010.
  • Emoto, K., H. Sato, and T. Nishimura
    Synthesis of vector wave envelopes on the free surface of a random medium for the vertical incidence of a plane wavelet based on the Markov approximation.
    J. Geophys. Res., 115, B08306, doi: 10.1029/2009JB006955, 2010. (Student Paper)
  • Tripathi, J. N., H. Sato, and M. Yamamoto
    Envelope broadening characteristics of crustal earthquakes in northeastern Honshu, Japan.
    Geophys. J. Int., 182(2), 988-1000 doi: 10.1111/j.1365-246X.2010.04657.x, 2010.
  • Yamamoto, M. and H. Sato
    Multiple scattering and mode conversion revealed by an active seismic experiment at Asama volcano, Japan.
    J. Geophys. Res., 115, B07304, doi: 10.1029/2009JB007109, 2010
  • Sato, H.
    Retrieval of Green's function having coda waves from the cross-correlation function in a scattering medium illuminated by a randomly homogeneous distribution of noise sources on the basis of the first-order Born approximation.
    Geophys. J. Int., 180(2), 759-764 doi: 10.1111/j.1365-246X.2009.04432.x, 2010.
  • Kozono, T., and T. Koyaguchi
    A simple formula for calculating porosity of magma in volcanic conduits during dome-forming eruptions.
    Earth Planets Space, 62, 483-488 doi: 10.5047/eps.2010.02.005, 2010.
  • Koyaguchi, T., Y.J. Suzuki, and T. Kozono
    Effects of the crater on eruption column dynamics.
    J. Geophys. Res., 115, B07205 doi: 10.1029/2009JB007146, 2010


  • Nishimura, T.
    Ground deformation caused by magma ascent in an open conduit,
    J. Volcanol. Geotherm. Res., 187(3-4), 178-192, doi:10.1016/j.jvolgeores.2009.09.001, 2009.
  • Aoki, Y. et al. (M. Yamamoto)
    P-wave velocity structure beneath Asama Volcano, Japan, inferred from active source seismic experiment,
    J. Volcanol. Geotherm. Res., 187(3-4), 272-277, doi:10.1016/j.jvolgeores.2009.09.004, 2009.
  • Carcole, E. and H. Sato
    Spatial distribution of scattering loss and intrinsic absorption of short-period S waves in the lithosphere of Japan on the basis of the Multiple Lapse Time Window Analysis of Hi-net data,
    Geophys. J. Int., 180(1), 268-290 doi:10.1111/j.1365-246X.2009.04394.x, 2009.
  • Sato, H.
    Green's function retrieval from the CCF of coda waves in a scattering medium,
    Geophys. J. Int., 179(3), 1580-1583 doi:10.1111/j.1365-246X.2009.04398.x, 2009.
  • Sato, H.
    Retrieval of Green's function having coda from the cross-correlation function in a scattering medium illuminated by surrounding noise sources on the basis of the first order Born approximation,
    Geophys. J. Int., 179(1), 408-412, doi:10.1111/j.1365-246X.2009.04296.x, 2009.
  • Takahashi, T., H. Sato, T. Nishimura, and K. Obara
    Tomographic inversion of the peak delay times to reveal random velocity fluctuations in the lithosphere: method and application to northeastern Japan,
    Geophys. J. Int., 178(3), 1437-1455, doi:10.1111/j.1365-246X.2009.04227.x, 2009. (Student Paper)
  • Takagi, H., S. Kaneshima, T.Ohkura, M. Yamamoto, H. Kawakatsu
    Long-term variation of the shallow tremor sources at Aso Volcano from 1999 to 2003,
    J. Volcanol. Geotherm. Res., 184(3-4), 333-346, doi:10.1016/j.jvolgeores.2009.04.013, 2009.
  • Wegler, U., H. Nakahara, C. Sens-Schonfelder, M. Korn, and K. Shiomi
    Sudden drop of seismic velocity after the 2004 Mw 6.6 mid-Niigata earthquake, Japan, observed with Passive Image Interferometry,
    J. Geophys. Res., 114, B06305, doi:10.1029/2008JB005869, 2009.
  • Sawazaki, K., H. Sato, H. Nakahara, and T. Nishimura
    Time-lapse changes of seismic velocity in the shallow ground caused by strong ground motion shock of the 2000 Western-Tottori Earthquake, Japan, as revealed from coda deconvolution analysis,
    Bull. Seismol. Soc. Am., 99(1), 352-366 doi:10.1785/0120080058, 2009. (Student Paper)
  • Kozono, T., and T. Koyaguchi
    Effects of relative motion between gas and liquid on 1-dimensional steady flow in silicic volcanic conduits: 1. An analytical method,
    J. Volcanol. Geotherm. Res., 180, 21-36 doi:10.1016/j.jvolgeores.2008.11.006, 2009.
  • Kozono, T., and T. Koyaguchi
    Effects of relative motion between gas and liquid on 1-dimensional steady flow in silicic volcanic conduits: 2. Origin of diversity of eruption styles,
    J. Volcanol. Geotherm. Res., 180, 37-49 doi:10.1016/j.jvolgeores.2008.11.007, 2009.


  • Sato, H.
    Scattering of Seismic Waves in Heterogeneous Earth,
    (Encyclopedia of Complexity and Systems Science, Ed. Meyers, R. A.), Springer Verlag GmbH Berlin Heidelberg, ISBN: 978-0387758886, 2008.
  • Sato, H. and M. Korn
    Synthesis of vector-wave envelopes in random elastic media on the basis of the Markov approximation,
    in "Earth heterogeneity and scattering effects on seismic waves" (Eds. H. Sato and M. C. Fehler), (Advanced in Geophysics, Vol. 50, Series Ed. R. Dmowska) Academic Press, , ISBN: 978-0123745095, 2008.
  • Sato, H.
    Synthesis of vector-wave envelopes in 3-D random media characterized by a nonisotropic Gaussian ACF based on the Markov approximation,
    J. Geophys. Res., 113, B08304, doi:10.1029/2007JB005524, 2008.
  • Nakahara, H.
    Seismogram envelope inversion for high-frequency seismic energy radiation from moderate to large earthquakes,
    in "Earth heterogeneities and scattering effects on seismic waves (Eds. H. Sato and M. C. Fehler)", (Advanced in Geophysics, Vol. 50, Series Ed. R. Dmowska) Academic Press, , ISBN: 978-0123745095, 2008.
  • Yamamoto, M., and H. Kawakatsu
    An efficient method to compute the dynamic response of a fluid-filled crack ,
    Geophys. J. Int., 174(3), 1174-1186, doi:10.1111/j.1365-246X.2008.03871.x, 2008.
  • Takahashi, T., H. Sato and T. Nishimura
    Recursive formula for the peak delay time with travel distance in von Karman type non-uniform random media on the basis of the Markov approximation ,
    Geophys. J. Int., 173(2), 534-545, doi:10.1111/j.1365-246X.2008.03739.x, 2008. (Student Paper)
  • Maeda, T., H. Sato and T. Nishimura
    Synthesis of coda wave envelopes in randomly inhomogeneous elastic media in a half-space: single scattering model including Rayleigh waves,
    Geophys. J. Int., 172(1), 130-154, doi:10.1111/j.1365-246X.2007.03603.x, 2008. (Student Paper)


  • Kubanza, M., T. Nishimura, and H. Sato
    Evaluation of strength of heterogeneity in the lithosphere from peak amplitude analyses of teleseismic short-period vector P waves, Geophys.
    J. Int., 171(1), 390-410, doi:10.1111/j.1365-246X.2007.03544.x, 2007. (Student Paper)
  • Sato H. and M. Korn
    Envelope syntheses of cylindrical vector-waves in 2-D random elastic media based on the Markov approximation,
    Earth Planets Space, 59(4), 209-219, 2007.
  • Sato H.
    Synthesis of vector wave envelopes in three-dimensional random elastic media characterized by a Gaussian autocorrelation function based on the Markov approximation: Spherical wave case,
    J. Geophys. Res., 112(B01), B01301, doi:10.1029/2006JB004437, 2007.
  • Sato, H. and M. C. Fehler
    Synthesis of Seismogram Envelopes in Heterogeneous Media,
    in "Wave Propagation in terogeneous Earth" , (Advances in Geophysics, Vol. 48, Eds. R. S. Wu and V. Maupin), Elsevier, . ISBN: 978-0120188505, 2007.
  • Takahashi, T., H. Sato, T. Nishimura and K. Obara
    Strong inhomogeneity beneath Quaternary volcanoes revealed from the peak delay analysis of S-wave seismograms of microearthquakes in northeastern Japan,
    Geophys. J. Int., 168, 90-99, doi:10.1111/j.1365-246X.2006.03197.x, 2007. (Student Paper)
  • Kawakatsu, H., and M. Yamamoto
    Volcano Seismology,
    in "Treatise on Geophysics", (Ed. H. Kanamori), Elsevier, ISBN: 978-0444519283, 2007


  • Nishimura, T.
    Ground deformation due to magma ascent with and without degassing,
    Geophys. Res. Lett., 33, L23309 , doi:10.1029/2006GL028101, 2006.
  • Nakahara, H.
    A derivation of the relation between spatial correlation and Green's function based on the slowness method: Isotropic incidence of random scalar waves,
    Zisin, 59(2), 159-166, 2006.
  • Nakahara, H.
    A systematic study of theoretical relations between spatial correlation and Green's function in one-, two- and three-dimensional random scalar wavefields,
    Geophys. J. Int., 167(3), 1097-1105, doi:10.1111/j.1365-246X.2006.03170.x, 2006.
  • Nakahara, H., K. Sawazaki, N. Takagi, T. Nishimura, H. Sato and H. Fujiwara
    Strong ground motions recorded by a near-source seismographic array during the 16 August 2005 Miyagi-Ken-Oki, JAPAN, earthquake (Mw 7.2),
    Earth Planets Space, 58. 1555-1559 2006.
  • Sawazaki, K., H. Sato, H. Nakahara, and T. Nishimura
    Temporal Change in Site Response Caused by Earthquake Strong Motion as Revealed from Coda Spectral Ratio Measurement,
    Geophys. Res. Lett., 33, L21303, doi:10.1029/2006GL027938, 2006. (Student Paper)
  • Sinha, B. K., J. Pabon, and M. Yamamoto
    Stoneley radial profiling of formation shear slowness,
    US Patent Application, 20060256656, 2006. GB Patent Application, GB2426052, 2006. Canadian Patent Application, 2542531, 2006.
  • Takagi, N., H. Sato, T. Nishimura, and K. Obara
    Rayleigh wave group velocity in Japan revealed from the cross-correlation analysis of microseisms excited by typhoons,
    The 8th SEGJ International Symposium - Imaging and Interpretation - , Extended abstract, , 2006. (Student Paper)
  • Kubanza, M., T. Nishimura, and H. Sato
    Spatial variation of lithospheric heterogeneity on the globe as revealed from transverse amplitudes of short-period teleseismic P-waves,
    Earth Planets Space, 58(10), e45-48, 2006. (Student Paper)
  • Curtis, A., P. Gerstoft, H. Sato, R. Snieder, R. and K. Wapenaar
    Seismic interferometry -- turning noise into signal,
    The Leading Edge, 25(9), 1082-1092, doi:10.1190/1.2349814, 2006.
  • Shimomura, Y., T. Nishimura and H. Sato,
    Bubble growth processes in magma surrounded by an elastic medium,
    J. Volcanol. Geotherm. Res., 155 307-322, doi:10.1016/j.jvolgeores.2006.04.003, 2006. (Student Paper)
  • Sato, H.
    Synthesis of vector wave envelopes in three-dimensional random elastic media characterized by a Gaussian autocorrelation function based on the Markov approximation: Plane wave case,
    J. Geophys. Res., 111(B6), B06306, doi:10.1029/2005JB004036, 2006.
  • Nishimura, T., M. Ichihara, and S. Ueki
    Investigation of the Onikobe geyser, NE Japan, by observing the ground tilt and flow parameters,
    Earth Planets Space, 58(6), e21-e24, 2006.
  • Nakahara, H.
    Theoretical background of retrieving Green's function by cross-correlation: one-dimensional case,
    Geophys. J. Int., 165(3), 719-728, doi:10.1111/j.1365-246X.2006.02916.x, 2006.
  • Takagi, N., S. Kaneshima, H. Kawakatsu, M. Yamamoto, Y. Sudo, T. Ohkura, S. Yoshikawa, and T. Mori
    Apparent migration of tremor source synchronized with the change in the tremor amplitude observed at Aso volcano, Japan,
    J. Volcanol. Geotherm. Res., 154(3-4), 181-200, doi:10.1016/j.jvolgeores.2006.02.001, 2006.
  • Shiomi, K., K. Obara, and H. Sato
    Moho depth variation beneath southwestern, Japan revealed from thevelocity structure based on receiver function inversion,
    Tectonophysics, 420, 205-221, doi:10.1016/j.tecto.2006.01.017, 2006.
  • Tanaka, S., H. Sato, S. Matsumura, and M. Ohtake
    Tidal triggering of earthquakes in the subducting Philippine Sea plate beneath the locked zone of the plate interface in the Tokai region, Japan,
    Tectonophysics, 417, 69-80, doi:10.1016/j.tecto.2005.09.013, 2006.
  • Lee, W. S. and H. Sato
    Power-law decay characteristic of coda envelopes revealed from the analysis of regional earthquakes,
    Geophys. Res. Lett., 33, L07317, doi:10.1029/2006GL025840, 2006.
  • Maeda, T., H. Sato and M. Ohtake
    Constituents of vertical-component coda waves at long periods,
    Pure. Appl Geophys., 163(2-3), 549-566, doi:10.1007/s00024-005-0031-9, 2006. (Student Paper)
  • Lee, W. S., H. Sato, and K. Lee
    Scattering coefficients in the mantle revealed from the seismogram envelope analysis based on the multiple isotropic scattering model,
    Earth Planet Sci. Lett., 241, 888-900, doi:10.1016/j.epsl.2005.10.035, 2006.


  • Takahashi, T., H. Sato, M. Ohtake and K. Obara
    Scale-dependence of apparent stress for earthquakes along the subducting Pacific Plate in Northeastern Honshu, Japan,
    Bull. Seismol. Soc. Am., 95(4), 1334-1345, doi:10.1785/0120040075, 2005. (Student Paper)
  • Nishimura, T., S. Tanaka, T. Yamawaki, H. Yamamoto, T. Sano, M. Sato, H. Nakahara, N. Uchida, S. Hori, and H. Sato
    Temporal changes in seismic velocity of the crust around Iwate volcano, Japan, as inferred from analyses of repeated active seismic experiment data from 1998 to 2003,
    Earth Planets Space, 57(6), 491-505, 2005.
  • Korn, M. and H. Sato
    Synthesis of plane vector wave envelopes in two-dimensional random elastic media based on the Markov approximation and comparison with finite-difference simulations,
    Geophys. J. Int., 161(3), 839-848, doi:10.1111/j.1365-246X.2005.02624.x, 2005.
  • 西村太志, 内田東
    火山, 50(5), 387-391, 2005.
  • Saito T., H. Sato, M. Ohtake, and K. Obara
    Unified Explanation of Envelope Broadening and Maximum-Amplitude Decay of High-Frequency Seismograms based on the Envelope Simulation using the Markov Approximation: Forearc Side of the Volcanic Front in Northeastern Honshu, Japan,
    J. Geophys. Res., 110(B01), B01304, 1 doi:10.1029/2004JB003225, 2005.


  • Yoshimoto, K., H. Fujisawa, T. Okada, N. Umino, A. Hasegawa, K. Obara, K. Shiomi, H. Tsukahara, S. Okamoto, T. Kawahara, H. Sato, T. Nishimura, H. Sato, and M. Ohtake
    Moho and Philippine Sea plate structure beneath central Honshu Island Japan, from teleseismic receiver functions,
    Earth Planets Space, 56, 1271-1277, 2004.
  • Tanaka S., M. Ohtake, and H. Sato
    Tidal triggering of earthquakes in Japan related to the regional tectonic stress,
    Earth Planets Space, 56, 511-515, 2004.
  • Nishimura, T.
    Pressure recovery in magma due to bubble growth,
    Geophys. Res. Lett., 31, L12613, doi:10.1029/2004GL019810, 2004.
  • Nakahara, H.
    Correlation distance of waveforms for closely located events -I. Implication of the heterogeneous structure around the source region of the 1995 Hyogo-Ken Nanbu, Japan, earthquake (Mw = 6.9),
    Geophys. J. Int., 157, 1255-1268, doi:10.1111/j.1365-246X.2004.02278.x, 2004.
  • Sato, H., M. Fehler, and T. Saito
    Hybrid synthesis of scalar wave envelopes in two-dimensional random media having rich short-wavelength spectra,
    J. Geophys. Res., 109, B06303, doi:10.1029/2003JB002673, 2004.
  • Shiomi, K., H. Sato, K. Obara, and M. Ohtake
    Configuration of subducting Philippine Sea plate beneath southwest Japan revealed from receiver function analysis based on the multivariate autoregressive model,
    J. Geophys. Res., 109, B04308, doi:10.1029/2003JB002774, 2004.
  • Yamawaki, T., S. Tanaka, S. Ueki, H. Hamaguchi, H. Nakamichi, T. Nishimura, J. Oikawa, T. Tsutsui, K. Nishi, H. Shimizu, S. Yamaguchi, H. Miyamachi, H. Yamasato, and Y. Hayashi
    Three-dimensional P-wave velocity structure of Bandai volcano in northeastern Japan inferred from active seismic survey,
    J. Volcanol. Geotherm. Res., 138, 3-4, 267-282 doi:10.1016/j.jvolgeores.2004.07.010, 2004.
  • Yamawaki, T., T. Nishimura, and H. Hamaguchi
    Temporal change of seismic structure around Iwate volcano inferred from waveform correlation analysis of similar earthquakes,
    Geophys. Res. Lett., 31, doi:10.1029/2004GL021103, 2004.


  • Mabuchi, H., M. Ohtake, and H. Sato
    Possibility of estimating the maximum earthquake magnitude based on a modified G-R model for Magnitude-frequency distribution: Spatial distribution of Mc east off northeast Japan,
    Zisin 2, 56, 255-265, 2003. (in Japanese with English abstract) ] (Student Paper)
  • Lee, W. S., H. Sato, and K. Lee
    Estimation of S-wave scattering coefficient in the mantle from envelope characteristics before and after the ScS arrival,
    Geophys. Res. Lett., 30(24), 2248, doi:10.1029/2003GL018413, 2003.
  • Fehler, M., and H. Sato
    Pure Appl. Geophys., 160, 541-554, 2003.
  • Fukushima, Y., O. Nishizawa, H. Sato, and M. Ohtake
    Laboratory study on scattering charactersitics of shear waves in rock samples,
    Bull. Seism. Soc. Am., 93, 253-263, 2003. (Student Paper)
  • Maeda, T., H. Sato, and M. Ohtake
    Synthesis of Rayleigh-wave envelope on the spherical Earth: Analytic solution of the single isotropic-scattering model for a circular source radiation,
    Geophys. Res. Lett., 30(6), 1286, doi:10.1029/2002GL016629, 2003. (Student Paper)
  • Nakamichi, H., H. Hamaguchi, S. Tanaka, S. Ueki, T. Nishimura, and A. Hasegawa
    Source mechanisms of deep and intermediate-depth low-frequency earthquakes beneath Iwate volcano, northeastern Japan,
    Geophys. J. Int., 154, 811-828, 2003.
  • Nishimura, T., and B. Chouet
    A numerical simulation of magma motion, crustal deformation, and seismic radiation associated with volcanic eruptions,
    Geophys. J. Int., 153, 699-718, 2003.
  • Saito, T., H. Sato, M. Fehler, and M. Ohtake
    Simulating the envelope of scalar-waves in 2-D random media having power-law spectra of velocity fluctuation,
    Bull. Seism. Soc. Am., 93, 240-252, 2003. (Student Paper)
  • Ueda, H., M. Ohtake, and H. Sato
    Postseismic crustal deformation following the 1993 Hokkaido Nansei-oki earthquake, northern Japan: Evidence for a low viscosity zone in the uppermost mantle,
    J. Geophys. Res., 108(B3), doi:10.1029/2002JB002067, 2003. (Student Paper)


  • Nakahara, H., T. Nishimura, H. Sato, M. Ohtake, S. Kinoshita, and H. Hamaguchi
    Broadband source process of the 1998 Iwate prefecture, Japan, earthquake as revealed from inversion analysis of seismic waveforms and envelopes,
    Bull. Seism. Soc. Am., 92, 1708-1720, 2002.
  • Nishimura, T., K. Yoshimoto, T. Ohtaki, K. Kanjo, and I. Purwana
    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. Lett., 29(23), doi:10.1029/2002GL015606, 2002.
  • Nishimura T., S. Ueki, T. Yamawaki, S. Tanaka, H. Hashino, M. Sato, H. Nakamichi and H. Hamaguchi
    Broadband seismic signals associated with the 2000 volcanic unrest of Mount Bandai, Northeastern Japan,
    J. Volcanol. Geotherm. Res., 119, 51-59, 2002.
  • Ohtake, M., and H. Ueda
    Sattistical forecast of next Miyagi-Oki, northeast Honshu earthquake,
    Tohoku Geophys. J., 36, 299-310, 2002.
  • Saito, T., H. Sato, and M. Ohtake
    Envelope broadening of spherically outgoing waves in three-dimensional random media having power law spectra,
    J. Geophys. Res., 107(B5), 2089, doi:10.1029/2001JB000264, 2002. (Student Paper)
  • Saito T., H. Sato, and M. Ohtake
    Correction to ``Envelope broadening of spherically outgoing waves in three-dimensional random media having power law spectra'' by Tatsuhiko Saito, Haruo Sato, and Masakazu Ohtake,
    J. Geophys. Res., 107(B9), 2197, doi:10.1029/2002JB002063, 2002. (Student Paper)
  • Sato, H. and M. Nishino
    Multiple isotropic-scattering model on the spherical Earth for the synthesis of Rayleigh-wave envelopes,
    J. Geophys. Res., 107(12), 2343, doi:10.1029/2001JB000915, 2002.
  • Tanaka, S., M. Ohtake, and H. Sato
    Evidence for tidal triggering of earthquakes as revealed from statistical analysis of global data,
    J. Geophys. Res., 107(B10), 2211, doi:10.1029/2001JB001577, 2002. (Student Paper)
  • Tanaka, S., M. Ohtake, and H. Sato
    Spatio-temporal variation of the tidal triggering effect on earthquake occurrence associated with the 1982 South Tonga earthquake of Mw 7.5,
    Geophys. Res. Lett., 29(16), 1756, doi:10.1029/2002GL015386, 2002. (Student Paper)
  • Tanaka, S, H. Hamaguchi, T. Nishimura, T. Yamawaki, S. Ueki, H. Nakamichi, T. Tsutsui, H. Miyamachi, N. Matsuwo, J. Oikawa,T. Ohminato, K. Miyaoka, S. Onizawa, T, Mori, K. Aizawa,
    Three-dimensional P-wave velocity structure of Iwate volcano, Japan from active seismic survey,
    Geophys. Res. Lett, 29(10), doi:10.1029/2002GL014983, 2002.
  • 内田直希・西村太志・吉本和生・中原恒・佐藤春夫・大竹政和・田中聡・浜口博之
    地震2, 55, 193?206, 2002. (Student Paper)
  • 鶴岡 弘・大竹政和
    地学雑誌, 111, 256-267, 2002.
  • 堀内茂木・根岸弘明・内田淳・口石雅弘・海野徳仁・松澤暢・岡田知巳・長谷川昭・吉本和生
    地震2, 55, 217-222, 2002.
  • 馬渕弘靖・大竹政和・佐藤春夫
    地震2, 55, 261-273, 2002. (Student Paper)


  • Chung, T. -W., and H. Sato
    A preliminary study of the attenuaition of high-frequency P and S waves in the crust of the Yangsan fault area,
    Tohoku Geophys. J., 36, 291-296, 2001.
  • Chung, T. -W., and H. Sato
    Attenuation of high-frequency P- and S- waves in the crust of the southeastern Korea,
    Bull. Seism. Soc. Am., 91, 1868-1874, 2001.
  • Hoshiba, M., A. Rietbrock, F. Scherbaum, H. Nakahara, and C. Haberland
    Scattering attenuation and intrinsic absorption using uniform and depth dependent model - Application to full seismogram envelope recoreded in Northern Chile,
    J. Seismol., 5, 157-179. 2001.
  • Matsumoto, S., K. Obara, K. Yoshimoto, T. Saito, A. Ito, and A. Hasegawa
    Temporal change in P-wave scatterer distribution associated with the M6.1 earthquake near Iwate volcano, northeastern Japan,
    Geophys. J. Int., 145, 48-58, 2001.
  • Nakahara, H., T. Nishimura, H. Sato, M. Ohtake, S. Kinoshita, and H. Hamaguchi
    Broad-band source process deduced by inversion of low-frequency waveforms and high-frequency seismogram envelopes: The M6.1 earthquake of September 3, 1998 in Iwate, Japan,
    Tohoku Geophys. J. , 36, 272. 2001.
  • Sato, H., and M. Nohechi
    Envelope formation of long-period Rayleigh waves in vertical component seismograms: Single isotropic scattering model,
    J. Geophys. Res., 106, 6589-6594, 2001.
  • Sivaji, C., O. Nishizawa and Y. Fukushima
    Relationship between fluctuations of arrival time and energy of seismic waves and scale length of heterogeneity: an inference from experimental study,
    Bull. Seism. Soc. Am., 91, 292-303, 2001.
  • Ueda, H., M. Ohtake, and H. Sato
    Afterslip of the plate interface following the 1978 Miyagi-Oki, Japan, earthquake, as revealed from geodetic measurement date,
    Tectonophysics, 338, 45-57, 2001. (Student Paper)
  • Yoshimoto, K. and R. S., Wu
    Scattering and intrinsic attenuation of S waves in southern California,
    Proceedings of the 5th SEGJ International Symposium -Imaging Technology-, Tokyo, Japan, 127-130, 2001.
  • 佐藤春夫・山下輝夫
    地震2, 54, 65-76, 2001.
  • 吉本和生
    地震2, 54, 147-158, 2001.


  • Fehler, M., H. Sato, and L-J, Huang
    Envelope broadening of outgoing waves in 2-d random media: A comparison between the Markov approximation and numerical simulations,
    Bull. Seism. Soc. Am., 90, 914-928, 2000.
  • Nishimura, T., H. Nakamichi, S. Tanaka, M. Sato, T. Kobayashi, S. Ueki, H. Hamaguchi, M. Ohtake and H. Sato
    Source process of very long period seismic eventsassociated with the 1998 activity of Iwate Volcano, northeast Japan,
    J. Geophys. Res., 105, 19135-19147, 2000.
  • Nishimura, T., N. Uchida, H. Sato, M. Ohtake, S. Tanaka, and H. Hamaguchi
    Temporal change of the crustal structure associated with the M6.1 earthquake on September 3, 1998, and the volcanic activity of Mount Iwate, Japan,
    Geophys. Res. Lett., 27, 269-272, 2000.
  • Tchebotareva, I. I, A. V. Nikolaev and H. Sato
    Seismic emission activity of Earth's crust in Northern Kanto, Japan,
    Phys. Earth Planet Inter., 120, 167-182, 2000.
  • Yoshimoto, K.
    Monte-Carlo simulation of seismogram envelope in scattering media,
    J. Geophys. Res., 105, 6153-6161, 2000.
  • 吉本和生,内田直希,佐藤春夫,大竹政和,平田直,小原一成,
    地震2, 52, 407-416, 2000.


  • Iio, Y., S. Ohmi, R. Ikeda, E. Yamamoto, H. Ito, H. Sato, Y. Kuwahara, T. Ohminato,B. Shibazaki, and M. Ando
    Slow initial phase generated by microearthquakes occurring in the Western Nagano prefecture, Japan, -The source effect-,
    Geophys. Res. Lett., 26, 1969-1972, 1999.
  • Nakahara, H., H. Sato, M. Ohtake and T. Nishimura
    Spatial distribution of high-frequency energy radiation on the fault of the 1995 Hyogo-ken Nanbu, Japan, earthquake (Mw 6.9) on the basis of the seismogram envelope inversion,
    Bull. Seismol. Soc. Am., 89, 22-35, 1999.
  • Ohtake, M. and H. Nakahara
    Seasonality of great earthquake occurrence at the north western margin of the Philippine Sea plate,
    Pure Appl. Geophys., 155, 689-700, 1999.
  • 竹田順子,飯尾能久,小林洋二,山本清彦,佐藤春夫,大見士朗,伊藤久男,池田隆司,山本英二
    Vp/Vs比から推定される震源域の飽和度とサイスミシティーの関係: 長野県西部地域稠密観測データを用いて,
    地震2,51, 419-430,1999.
  • 松本聡・小原一成・吉本和生・斎藤竜彦・長谷川昭・伊東明彦


  • Nakahara, H., T. Nishimura, H. Sato, and M. Ohtake
    Seismogram envelope inversion for the spatial distribution of high-frequency energy radiation from the earthquakefault: Application to the 1994 far east off Sanriku earthquake, Japan,
    J. Geophys. Res., 103, 855-867, 1998. (Student Paper)
  • Nishimura, T.
    Source mechanisms of volcanic explosion earthquakes: single force and implosive sources,
    J. Volcanol. Geotherm. Res., 86, 97-106, 1998.
  • Yoshimoto, K., H. Sato, Y. Iio, H. Ito, T. Ohminato, and M. Ohtake
    Frequency-dependent attenuation of high-frequency P- and S-waves in the upper crust in western Nagano, Japan,
    Pure and Appl. Geophys., 153, 489-502, 1998.
  • 大竹政和
    地震2, 50(別冊), 83-99, 1998.
  • 佐藤春夫