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Coseismic and postseismic crustal deformation after the M w 8 Tokachi-oki earthquake in Japan

Earth, Planets and Space volume 56, pages 675–680 (2004)Cite this article

Abstract

The permanent Global Positioning System (GPS) array in Japan detected coseismic and postseimic deformation of the 2003 Tokachi-oki earthquake (M w 8). We estimate the time evolution of its postseismic slip, together with its coseismic slip distribution. The result shows that the postseismic slip has been occurring mainly in an area adjacent to the coseismic slips, propagating to the northeast and southwest. This suggests that, as of March 6, 2004, the postseismic slip of the strongly coupled area neighboring the coseismic rupture partly released seismic moment, equivalent to an earthquake of M w 7.8.

References

  • Akaike, H., A new look at the statistical model identification, IEEE, Trans. Auto. Control, AC-19, 716–723, 1974.

    Article  Google Scholar 

  • Bierman, G. J., Factorization methods for discrete sequential estimation, Academic Press, New York, 1977.

    Google Scholar 

  • Earthquake Research Committee, Long term evaluation of the seismic activity along the Chishima trench, Rep. Earthquake Res. Committee, 2004 (in press).

    Google Scholar 

  • Hatanaka, Y., Improvement of the analysis strategy of GEONET, Bull. Geograph. Survey Inst., 49, 11–37, 2003.

    Google Scholar 

  • Heki, K., S. Miyazaki, and H. Tsuji, Silent fault slip following an interplate thrust earthquake at the Japan Trench, Nature, 386, 595–598, 1997.

    Article  Google Scholar 

  • Honda, R. et al., Ground motion and rupture process of the 2003 Tokachioki earthquake obtained from strong motion data of K-NET and KiK-net, Earth Planets Space, 56, 317–322, 2004.

    Article  Google Scholar 

  • Ito, T., S. Yoshioka, and S. Miyazaki, Interplate coupling in northeast Japan deduced from inversion analysis of GPS data, Earth Planet. Sci. Lett., 176, 117–130, 2000.

    Article  Google Scholar 

  • Ito, Y. et al., Spatial distribution of moment tensor solutions of the 2003 Tokachi-oki earthquake (MJMA=8.0) and aftershocks, Earth Planets Space, 56, 301–306, 2004.

    Article  Google Scholar 

  • Kamae, K. and H. Kawabe, Source model composed of asperities for the 2003 Tokachi-oki, Japan, earthquake (MJMA=8.0) estimated by the empirical Green’s function method, Earth Planets Space, 56, 323–327, 2004.

    Article  Google Scholar 

  • Katsumata, K., N. Wada, and M. Kasahara, Newly imaged shape of the deep seismic zone within the subducting Pacific plate beneath the Hokkaido corner, Japan-Kurile arc-arc junction, J. Geophys. Res., 108, 2565, doi:10.1029/2002JB002175, 2003.

    Article  Google Scholar 

  • Koketsu, K., K. Hikima, S. Miyazaki, and S. Ide, Joint inversion of strong motion and geodetic data for the source process of the 2003 Tokachi-oki, Hokkaido, earthquake, Earth Planets Space, 56, 329–334, 2004.

    Article  Google Scholar 

  • Mazzotti, S., X. L. Pichon, H. Pierre, and S. Miyazaki, Full interseismic locking of the Nankai and Japan-west Kuril subduction zones: an analysis of uniform elastic strain accumulation in Japan constrained by permanent GPS, J. Geophys. Res., 105, 13159–13177, 2000.

    Article  Google Scholar 

  • Nishimura et al., Distribution of seismic coupling on the subducting plate boundary, in northeastern Japan inferred from GPS observations, Tectonophysics, 323, 218–238, 2000.

    Article  Google Scholar 

  • Ozawa, S., M. Murakami, and T. Tada, Time-dependent inversion analysis of the slow thrust event in the Nankai trough subduction zone, southwestern Japan, J. Geophys. Res., 106, 787–802, 2001.

    Article  Google Scholar 

  • Ozawa, S., S. Miyazaki, T. Nishimura, M. Murakami, M. Kaidzu, T. Imakiire, and X. Ji, Creep, dike intrusion and magma chamber deflation model for the 2000 Miyake eruption and the Izu islands earthquakes, J. Geophys. Res., 2004 (in press).

    Google Scholar 

  • Segall, P. and M. Matthews, Time dependent inversion of geodetic data, J. Geophys. Res., 102, 22391–22409, 1997.

    Article  Google Scholar 

  • Shinohara, M. et al., Aftershock observation of the 2003 Tokachi-oki earthquake by using dense ocean bottom seismometer network, Earth Planets Space, 56, 295–300, 2004.

    Article  Google Scholar 

  • Simon, D. and D. L. Simon, Aircraft turbofan engine health estimation using constrained Kalman filtering, ASME Turbo Expo 2003, Atlanta, GA, paper GT2003-38584, 2003.

    Google Scholar 

  • Tanioka, Y., K. Hirata, R. Hino, and T. Kanazawa, Slip distribution of the 2003 Tokachi-oki earthquake estimated from tsunami waveform inversion, Earth Planets Space, 56, 373–376, 2004.

    Article  Google Scholar 

  • Yabuki, T. and M. Matsu’ura, Geodetic data inversion using Bayesian information criteria for spatial distribution of fault slip, Geophys. J. Int., 109, 363–375, 1992.

    Article  Google Scholar 

  • Yagi, Y., Source rupture process of the 2003 Tokachi-oki earthquake determined by joint inversion of teleseismic body wave and strong ground motion data, Earth Planets Space, 56, 311–316, 2004.

    Article  Google Scholar 

  • Yagi, Y. and M. Kikuchi, Partitioning between seismogenic and aseismic slip as highlighted from slow slip events in Hyuga-nada, Japan, Geophys. Res. Lett., 30, 1087, doi:10.1029/2002GL015665, 2003.

    Article  Google Scholar 

  • Yagi, Y., M. Kikuchi, and T. Sagiya, Co-seismic slip, post-seismic slip, and aftershocks associated with two large earthquakes in 1996 Hyuga-nada, Japan, Earth Planets Space, 53, 793–803, 2001.

    Article  Google Scholar 

  • Yamanaka, Y. and M. Kikuchi, EIC SEISMOLOGICAL NOTE: No. 139, 2003.

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Authors and Affiliations

  1. Geographical Survey Institute of Japan, Japan

    Shinzaburo Ozawa, Masaru Kaidzu, Makoto Murakami, Tetsuo Imakiire & Yuki Hatanaka

Authors
  1. Shinzaburo Ozawa
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  2. Masaru Kaidzu
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  3. Makoto Murakami
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  4. Tetsuo Imakiire
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  5. Yuki Hatanaka
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Correspondence to Shinzaburo Ozawa.

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Ozawa, S., Kaidzu, M., Murakami, M. et al. Coseismic and postseismic crustal deformation after the M w 8 Tokachi-oki earthquake in Japan. Earth Planet Sp 56, 675–680 (2004). https://doi.org/10.1186/BF03352530

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  • DOI: https://doi.org/10.1186/BF03352530

Key words

  • Tokachi-oki earthquake
  • coseismic deformation
  • afterslip
  • postseismic deformation