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Volume 58 Supplement 1

Special Issue: Special Section for the 2005 West Off Fukuoka Prefecture Earthquake (1)

Source processes of the 2005 West Off Fukuoka Prefecture earthquake and its largest aftershock inferred from strong motion and 1-Hz GPS data


We simultaneously inverted strong motion and 1-Hz GPS data recorded during the 2005 west off Fukuoka prefecture earthquake (MJMA 7.0) for its source process. The data at a GPS station near the source region provided strong constraint on the fault geometry and asperity area. The resultant slip distribution suggests a single asperity close to the Genkai island, where many houses were severely damaged. The maximum slip is 1.4 m, and the total seismic moment is 1.0 × 1019 Nm (MW 6.6). We also inverted strong motion data recorded during the largest aftershock (MJMA 5.8). The resultant slip distribution shows two asperities on the fault plane. The maximum slip in the major asperity is 0.12 m and the total seismic moment is 2.0 × 1017 Nm (MW 5.5). The main shock and largest aftershock may cause stress change on the Kego fault, which is a major fault running through the city of Fukuoka.


  • Akaike, H., Likelihood and Bayes procedure, in Bayesian Statistics, edited by J. M. Bernardo et al., pp. 143–166, Univ. Press, Valencia, Spain, 1980.

    Google Scholar 

  • Goldberg, D. E., Genetic Algorithms in Search, Optimization, and Machine Learning, 412 pp, Addison-Wesley, 1989.

    Google Scholar 

  • Hikima, K. and K. Koketsu, Source process of the foreshock, mainshock and largest aftershock in the 2003 Miyagi-ken Hokubu, Japan, earthquake sequence, Earth Planets Space, 56, 87–93, 2004.

    Article  Google Scholar 

  • Irwan, M., F. Kimata, K. Hirahara, T. Sagiya, and A. Yamagiwa, Measuring ground deformations with 1-Hz GPS data: the 2003 Tokachioki earthquake (preliminary report), Earth Planets Space, 56, 389–393, 2004.

    Article  Google Scholar 

  • Ito, Y, K. Obara, T. Takeda, K. Shiomi, T. Matsumoto, S. Sekiguchi, and S. Hori, Initial-rupture fault, main-shock fault, and aftershock faults: Fault geometry and bends inferred from centroid moment tensor inversion of the 2005 west off Fukuoka prefecture earthquake, Earth Planets Space, 58, this issue, 69–74, 2006.

    Article  Google Scholar 

  • Iwata, T. and H. Sekiguchi, Source process of the 2000 western Tottori earthquake and strong ground motions in the epicentral area, Earth Monthly, 38, 182–188, 2002 (in Japanese).

    Google Scholar 

  • Ji, C., K. M. Larson, Y. Tan, K. W. Hudnut, and K. Choi, Slip history of the 2003 San Simeon earthquake constrained by combining 1-Hz GPS, strong motion, and teleseismic data, Geophys. Res. Lett., 31, L17608, doi:10.1029/2004GL020448, 2004.

    Article  Google Scholar 

  • Kawase, H., K. Nagato, and S. Nakamichi, Damage prediction of Fukuoka city for a scenario earthquake based on strong ground motions evaluated by a hybrid technique, J. Struct. Eng., 49B, 7–16, 2003 (in Japanese with English abstract).

    Google Scholar 

  • Kobayashi, R. and I. Nakanishi, Application of genetic algorithms to focal mechanism determination, Geophys. Res. Lett., 21, 729–732, 1994.

    Article  Google Scholar 

  • Kohketsu, K., The extended reflectivity method for synthetic near-field seismograms, J. Phys. Earth, 33, 121–131, 1985.

    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 Tokachioki, Hokkaido, earthquake, Earth Planets Space, 56, 329–334, 2004.

    Article  Google Scholar 

  • Koyama, J., N. V. Shestakov, and R. Honda, Strong ground motion recorded by high-rate sampling GPS at the closest site to the 2003 Tokachi-oki earthquake, Earth Planets Space, 56, 383–387, 2004.

    Article  Google Scholar 

  • Larson, K. M., P. Bodin, and J. Gomberg, Using 1-Hz GPS data to measure deformations caused by the Denali fault earthquake, Science, 300, 1421–1424, 2003.

    Article  Google Scholar 

  • Miyazaki, S., K. M. Larson, K. Choi, K. Hikima, K. Koketsu, P. Bodin, J. Haase, G. Emore, and A. Yamagiwa, Modeling the rupture process of the 2003 September 25 Tokachi-Oki (Hokkaido) earthquake using 1-Hz GPS data, Geophys. Res. Lett., 31, L21603, doi:10.1029/2004GL02145, 2004.

    Article  Google Scholar 

  • National Research Institute for Earth Science and Disaster Prevention, Spatial distribution of F-net moment tensor solutions for the 2005 West Off Fukuoka earthquake, Report of the coordinating committee for earthquake prediction, 74, 477–478, 2005.

    Google Scholar 

  • Nishimura, T., S. Fujiwara, M. Murakami, H. Suito, M. Tobita, and H. Yarai, Fault model of the 2005 Fukuoka-ken Seiho-oki earthquake estimated from coseismic deformation observed by GPS and InSAR, Earth Planets Space, 58, this issue, 51–56, 2006.

    Article  Google Scholar 

  • Satoh, T. and H. Kawase, Simulation of strong motions in Fukuoka City during the 2005 West Off Fukuoka Prefecture Earthquake with special reference to thick Quaternary sediments around the Kego fault, Earth Planets Space, 58, this issue, 105–110, 2006.

    Article  Google Scholar 

  • Semmane, F., F. Cotton, and M. Campillo, The 2000 Tottori earthquake: A shallow earthquake with no surface rupture and slip properties controlled by depth, J. Geophys. Res., 110, B03306, doi:10.1029/2004JB003194, 2005.

    Google Scholar 

  • Wessel, P. and W. H. F. Smith, Free software helps map and display data, EOS Trans. Am. Geophys. Union, 72, 441–446, 1991.

    Article  Google Scholar 

  • Yoshida, S., K. Koketsu, B. Shibazaki, T. Sagiya, T. Kato, and Y. Yoshida, Joint inversion of near- and far-field waveforms and geodetic data for the rupture process of the 1995 Kobe earthquake, J. Phys. Earth, 44, 437–454, 1996.

    Article  Google Scholar 

  • Zhu, L. and L. A. Rivera, A note on the dynamic and static displacements from a point source in multilayered media, Geophys. J. Int., 148, 619–627, 2002.

    Article  Google Scholar 

  • 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 Reiji Kobayashi.

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Kobayashi, R., Miyazaki, S. & Koketsu, K. Source processes of the 2005 West Off Fukuoka Prefecture earthquake and its largest aftershock inferred from strong motion and 1-Hz GPS data. Earth Planet Sp 58, 57–62 (2006).

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Key words

  • The 2005 west off Fukuoka prefecture earthquake
  • source process
  • strong motion
  • 1-Hz GPS data
  • joint inversion