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Volume 56 Supplement 3

Special Issue: Special section for the 2003 Tokachi-oki earthquake

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Ground motion and rupture process of the 2003 Tokachi-oki earthquake obtained from strong motion data of K-NET and KiK-net

Earth, Planets and Space volume 56, pages 317–322 (2004)Cite this article

An Erratum to this article was published on 24 June 2014

Abstract

A great earthquake, named the 2003 Tokachi-oki earthquake, occurred in the southern Kuril subduction zone on 26th September 2003,4:50 JST (41.7797°N, 144.0795°E, 42 km depth; Japan Meteorological Agency). Its ground motion was recoreded at 655 stations of the nationwide strong motion networks, K-NET and KiK-net. A maximum peak ground acceleration of 988 cm/s2 (gal) was observed at station HKD100 and amplitudes greater than 200 cm/s2 were observed over a wide area of eastern Hokkaido. We used a multi-line linear waveform inversion method to estimate the rupture process from the strong motion data of supplied by 15 stations. We assumed a fault plane model of 140 km × 160 km with strike and dip angles of our fault model are N246°E and 18°, respectively, placed on the estimated upper boundary of the subducting Pacific Plate. The estimated total slip distribution consisted of three major slip areas; (a) around the hypocenter, (b) the northwest part of the fault with the maximum slip of 5.9 m, and (c) the northeast edge of the fault plane. The major asperity (b) was composed of two large slip areas with different slip rate functions: the duration of moment release in the sourtheast part is longer than 15 sec, but in contrast most of the seismic moment of the northwest part was released in a short period of less than 10 sec. Our estimation of the total seismic moment was 2.9 × 1021 N·m which corresponded to Mw = 8.2.

References

  • Akaike, H., Likelihood and the Bayes procedure, in Bayesian statics, edited by, J. M. Bernardo, M. H. DeGroot, D. V. Lindley, and A. F. M. Smith, University Press, Valencia, Spain, 1980.

    Google Scholar 

  • Aoi, S., K. Obara, S. Hori, K. Kasahara, and Y. Okada, New strong-motion observation network: KiK-net, EOS. Trans. Am. Geophys. Union, 329, 2000.

    Google Scholar 

  • Bouchon, M., A simple method to calculate Green’s function for elastic layered media, Bull. Seism. Soc. Am., 71, 959–971, 1981.

    Google Scholar 

  • Fukuyama, E., M. Ishida, S. Hori, S. Sekiguchi, and S. Watada, Broadband seismic observation conducted under the FREESIA Project, Rep. Nat’l. Res. Inst. Earth Sci. Disas. Prev., 57, 23–31, 1996.

    Google Scholar 

  • Hartzell, S. H. and T. Heaton, Inversion of strong ground motion and tele-seismic waveform data for the fault rupture history of the 1979 Imperial Valley, California, earthquake, Bull. Seism. Soc. Am., 73, 1553–1583, 1983.

    Google Scholar 

  • Hatori, T., Reexamination of the wave source of the 1952 Tokachi-Oki tsunami, J. Seismol. Soc. Jpn., 26, 206–208, 1973 (in Japanese with English abstract and figure captions).

    Google Scholar 

  • Hirata, K., E. Geist, K. Satake, Y. Tanioka, and S. Yamaki, Slip distribution of the 1952 Tokachi-Oki earthquake (M 8.1) along the Kuril Trench deduced from tsunami waveform inversion, J. Geophys. Res., 198, doi:10.1029/2002JB001976, 2003.

  • Ito, Y., H. Matsubayashi, H. Kimura, T. Matsumoto, Y. Asano, and S. Sekiguchi, Spatial distribution for moment tensor solutions of the 2003 Tokachi-oki earthquake (Mw=7.9) and aftershocks, Earth Planets Space, 56, this issue, 301–306, 2004.

    Article  Google Scholar 

  • Iwasaki, T., N. Hirata, T. Kanazawa, T. Urabe, Y. Motoya, and H. Shimamura, Earthquake distribution in the subduction zone off eastern Hokkaido, Japan, deduced from ocean-bottom seismographic and land observations, Geophys. J. Int., 105, 693–711, 1991.

    Article  Google Scholar 

  • Kasahara, M., A fault model of the Tokachi-Oki earthquake of 1952, Seis-mol. Soc. Jpn. Program Abstr., 90, 1975 (in Japanese).

  • Kennett, B. L. N., Seismic wave propagation in stratified media, Cambridge University Press., Cambridge, 1983.

    Google Scholar 

  • Kinoshita, S., Kyoshin net (k-net), Seism. Res. Lett., 69, 309–332, 1998.

    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, this issue, 329–334, 2004.

    Article  Google Scholar 

  • Lawson, C. and R. Hanson, Solving Least Squares Problems, Prentice-Hall, Inc., New Jersey, 1974.

    Google Scholar 

  • Mendoza, C. and S. Hartzell, Aftershock patterns and main shock faulting, Bull. Seism. Soc. Am., 78, 1438–1449, 1988.

    Google Scholar 

  • Morikawa, N., S. Aoi, R. Honda, and H. Fujiwara, Characterized source model of the 2003 Tokachi-oki earthquake for broadband strong ground motion evaluation, The 2004 Japan Earth and Planetary Science Joint Meeting, Chiba, Japan, 2004.

    Google Scholar 

  • Obara, K., Hi-net: High sensitivity seismograph network, Japan, Lecture Note in Earth Sciences, 98, 79–87, 2002.

    Article  Google Scholar 

  • Sekiguchi, H., K. Irikura, and T. Iwata, Source inversion for estimating continuous slip distribution on the fault—Introduction of Green’s functions convolved with a correction function to give moving dislocation effects in subfaults—, Geophys. J. Int., 150, 377–391, 2002.

    Article  Google Scholar 

  • Si, H. and S. Midorikawa, New attenuation relationships for peak ground acceleration and velocity considering effect of fault type and site condition, J. Struct. Constr. Eng., 523, 63–70, 1999 (in Japanese with English abstract and figure captions).

    Google Scholar 

  • Wald, D. J., D. Helmberger, and S. Heartzell, Rupture process of the 1987 Superstition Hills earthquake from the inversion of strong-motion data, Bull. Seism. Soc. Am., 80, 1079–1098, 1990.

    Google Scholar 

  • Wessel, P. and W. Smith, New version of the generic mapping tools, EOS. Trans. Am. Geophys. Un., 76, 329, 1995.

    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, this issue, 311–316, 2004.

    Article  Google Scholar 

  • Yamanaka, Y and M. Kikuchi, Asperity map along the subduction zone in Hokkaido region inferred from historical seismograms, Seismol. Soc. Jpn. Programme. Abstr. Fall Meeting, 2002.

    Google Scholar 

  • Yamanaka, Y and M. Kikuchi, Source process of the recurrent Tokachi-oki earthquake on September 26, 2003, inferred from telesesmic body waves, Earth Planets Space, 55, e21–e24, 2003.

    Article  Google Scholar 

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Authors and Affiliations

  1. National Research Institute for Earth Science and Disaster Prevention, Japan

    Ryou Honda, Shin Aoi, Nobuyuki Morikawa, Takashi Kunugi & Hiroyuki Fujiwara

  2. National Institute of Advanced Industrial Science and Technology, Japan

    Haruko Sekiguchi

Authors
  1. Ryou Honda
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  2. Shin Aoi
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  3. Nobuyuki Morikawa
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  4. Haruko Sekiguchi
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  5. Takashi Kunugi
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  6. Hiroyuki Fujiwara
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Corresponding author

Correspondence to Shin Aoi.

Additional information

An erratum to this article is available at http://dx.doi.org/10.1186/BF03352503.

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Honda, R., Aoi, S., Morikawa, N. et al. Ground motion and rupture process of the 2003 Tokachi-oki earthquake obtained from strong motion data of K-NET and KiK-net. Earth Planet Sp 56, 317–322 (2004). https://doi.org/10.1186/BF03353058

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  • DOI: https://doi.org/10.1186/BF03353058

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