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Volume 56 Supplement 2

Special Issue: Special section for IUGG workshop: Lithospheric Structure of a Supercontinent:Gondwana

Slip distribution of the 2003 northern Miyagi earthquake (M6.4) deduced from geodetic inversion

Abstract

On July 26, 2003, a disastrous earthquake with M6.4 struck the northern part of Miyagi prefecture, northern Honshu, Japan. GPS measurements and leveling surveys conducted by the Geographical Survey Institute (GSI) revealed clear evidence of coseismic deformation. We analyzed those data using a geodetic inversion to estimate the slip distribution on a curved fault plane, which is suggested by precise hypocenter determination performed by Tohoku University. The maximum slip area is located at the northern and shallower part of the fault plane, which is consistent with the slip distribution obtained by seismic waveform inversion. The spatial pattern of slip direction also shows good agreement with that of the focal mechanism.

References

  • Hashimoto, M., T. Tabei, T. Sagiya, and T. Ito, A model for the postseismic deformations following the 2000 Western Tottori earthquake (revisited), Prog. and Abstr. Seismol. Soc. Jap. 2003 Fall Meeting, C099, 2003 (in Japanese).

  • Heki, K., S. Miyazaki, and H. Tsuji, Silent fault slip following an interplate thrust earthquake at the Japan Trench, Nature, 386, 595–597, 1997.

    Article  Google Scholar 

  • Miura, S., S. Ueki, T. Sato, K. Tachibana, and H. Hamaguchi, Crustal deformation associated with the 1998 seismo-volcanic crisis of Iwate Volcano, Northeastern Japan, as observed by a dense GPS network, Earth Planets Space, 52, 1003–1008, 2000.

    Article  Google Scholar 

  • Miura, S., T. Sato, K. Tachibana, Y. Satake, and A. Hasegawa, Strain accumulation in and around Ou Backbone Range, northeastern Japan as observed by a dense GPS network, Earth Planets Space, 54, 1071–1076, 2002.

    Article  Google Scholar 

  • Miyazaki, S., T. Saito, M. Sasaki, Y. Hatanaka, and Y. Iimura, Expansion of GSI’s nationwide GPS array, Bull. Geogr. Surv. Inst., 43, 23–34, 1

    Google Scholar 

  • Nakano, T, and K. Hirahara, GPS observations of postseismic deformation for the 1995 Hyogo-ken Nanbu earthquake, Japan, Geophys. Res. Lett., 24, 503–506, 1997.

    Article  Google Scholar 

  • Nishimura, T., S. Miura, K. Tachibana, K. Hashimoto, T. Sato, S. Hori, E. Murakami, T. Kono, K. Nida, M. Mishina, T. Hirasawa, and S. Miyazaki, Distribution of seismic coupling on the subducting plate boundary in northeastern Japan inferred from GPS observations, Tectonophys., 323, 217–238, 2000.

    Article  Google Scholar 

  • Nishimura, T., T. Imakiire, H. Yarai, T. Ozawa, M. Murakami, and M. Kaizu, A preliminary fault model of the 2003 July 26, M6.4 northern Miyagi earthquake, northeastern Japan, estimated from joint inversion of GPS, leveling, and InSAR data, Earth Planets Space, 55, 751–757, 2003.

    Article  Google Scholar 

  • Ohtani, R., N. Koizumi, N. Matsumoto, and E. Tsukuda, Preliminary results from permanent GPS array by the Geological Survey of Japan in conjunction with groundwater-level observations, Earth Planets Space, 52, 663–668, 2000.

    Article  Google Scholar 

  • Okada T., N. Umino, and A. Hasegawa, Rupture process of July 2003 northern Miyagi earthquake sequence, NE Japan, estimated form double-difference hypocenter locations, Earth Planets Space, 55, 741–750, 2003.

    Article  Google Scholar 

  • Sagiya, T., S. Miyazaki, and T. Tada, Continuous GPS array and present-day crustal deformation of Japan, PAGEOPH, 157, 2303–2322, 2000.

    Google Scholar 

  • Seno, T., K. Shimazaki, P. Somerville, K. Sudo, and T. Eguchi, Rupture process of the Miyagi-Oki, Japan, earthquake of June 12, 1978, Phys. Earth Planet. Inter., 23, 39–61, 1980.

    Article  Google Scholar 

  • Shen, Z. K., D. D. Jackson, Y. Feng, M. Cline, M. Kim, P. Fang, and Y. Bock, Postseismic deformation following the Landers earthquake, California, 28 June 1992, Bull. Seism. Soc. Am., 84, 780–791, 1994.

    Google Scholar 

  • Shoji, Y., H. Nakamura, K. Aonashi, A. Ichiki, H. Seko, and Members of GPS/MET Japan Summer Campaign 1997 in Tsukuba, Semi-diurnal and diurnal variation of errors in GPS precipitable water vapor at Tsukuba, Japan caused by site displacement due to ocean tidal loading, Earth Planets Space, 52, 685–690, 2000.

    Article  Google Scholar 

  • Takiguchi, H., T. Kato, H. Kobayashi, and T. Nakaegawa, GPS observations in Thailand for hydrological applications, Earth Planets Space, 52, 913–919, 2000.

    Article  Google Scholar 

  • Umino, N., T. Okada, J. Nakajima, S. Hori, T. Kono, T. Nakayama, N. Uchida, J. Shimizu, J. Suganomata, G. Shantha, K. Nida, Y. Yabe, K. Sakoda, N. Sato, M. Ito, A. Hasegawa, Y. Asano, A. Hasemi, T. Demachi, and Y. Yajima, Hypocenter and focal mechanism distributions of after-shocks of July 26, 2003, M6.2 northern Miyagi earthquake revealed by temporary observations, J. Seism. Soc. Jap. (Zisin), 2003 (submitted) (in Japanese with English abstract).

    Google Scholar 

  • communication satellite, Programme Abstr. Seismol. Soc. Jpn., P22, 1996 (in Japanese).

  • Waldhause, F. and W. L. Ellsworth, A double-difference earthquake location algorithm: method and application to the Northern Hayward fault, Bull. Seism. Soc. Amer., 90, 1353–1368, 2000.

    Article  Google Scholar 

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

    Article  Google Scholar 

  • Yagi, Y., Y. Ito, Y. Asano, and S. Sekine, Fore-shock, main-shock, and the largest after-shock associated with the July 26 2003 Miyagi-ken-hokubu, Japan, earthquake, Prog. and Abstr. Seismol. Soc. Jap. 2003 Fall Meeting, A086, 2003 (in Japanese).

  • Zumberge, J. F., M. B. Heflin, D. C. Jefferson, M. M. Watkins, and F. H. Webb, Precise point positioning for the efficient and robust analysis of GPS data from large networks, J. Geophys. Res., 102, 5005–5017, 1997.

    Article  Google Scholar 

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Correspondence to Satoshi Miura.

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Miura, S., Suwa, Y., Sato, T. et al. Slip distribution of the 2003 northern Miyagi earthquake (M6.4) deduced from geodetic inversion. Earth Planet Sp 56, 95–101 (2004). https://doi.org/10.1186/BF03353393

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  • DOI: https://doi.org/10.1186/BF03353393

Key words

  • GPS
  • leveling survey
  • 2003 northern Miyagi earthquake (M6.4)
  • geodetic inversion
  • slip distribution