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Postseismic deformation following the 2005 West Off Fukuoka Prefecture Earthquake (M7.0) derived by GPS observation

Abstract

We constructed a temporary GPS network around the aftershock area of the 2005 West Off Fukuoka Prefecture Earthquake (M7.0) in order to investigate the characteristics of its postseismic deformation. Our GPS network data, as well as the GEONET data, were analyzed using Bernese GPS software. We detected notable postseismic deformation in horizontal components close to the fault plane. The observed maximum displacement was 5.6 cm at the GNKI site on Genkaijima Island. A logarithmic law was adapted to the coordinate time series data, revealing decay times from 2 to 23 days, similar to those obtained for the 2003 Tokachi-oki Earthquake (M8.0). The amount of postseismic slips on the fault was assessed using the coseismic fault model proposed by the Geographical Survey Institute (GSI). We derived an optimum fault model of postseismic slip on the shallow (less than 3 km depth) portion of the fault. Our findings indicate that postseismic slip occurred only in shallow parts of the coseismic fault.

References

  1. Altamimi, Z., P. Sillard, and C. Boucher, ITRF2000: A new release of International Terrestrial Reference Frame for earth science applications, J. Geophys. Res., 107, doi:10.1029/2001JB000561, 2002.

  2. Donnellan, A. and G. A. Lyzenga, GPS observations of fault afterslip and upper crustal deformation following the Nothridge earthquake, J. Geophys. Res., 103, 21285–21297, 1998.

    Article  Google Scholar 

  3. Geographical Survey Institute, The fault model of the West Off Fukuoka Prefecture Earthquake, http://www.jishin.go.jp/main/chousa/05mar_fukuoka/p17.gif, 2005.

    Google Scholar 

  4. Hashimoto, M., T. Tabei, T. Sagiya, and T. Ito, A model for the postseismic deformation following the 2000 western Tottori Earthquake (Revised), Abstract Seism. Soc. Jpn., C099, 2003.

    Google Scholar 

  5. 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 

  6. Hugentobler, U., R. Dach, and P. Fredez, Bernese GPS Software Version 5.0, AIUB, 392 pp., 2005.

    Google Scholar 

  7. Kato, T., G. S. EL-Fiky, and E. N. Oware, Crustal strains in the Japanese islands as deduced from dense GPS array, Geophys. Res. Lett., 25, 3445–3448, 1998.

    Article  Google Scholar 

  8. Marone, C. J., C. H. Scholtz, and R. Bilham, On the mechanics of earthquake afterslip, J. Geophys. Res., 96, 8441–8452, 1

    Article  Google Scholar 

  9. Matsushima, T., H. Takahashi, T. Kato, A. Takeuchi, T. Yamaguchi, Y. Kohno, J. Fukuda, K. Hatamoto, R. Doke, Y. Matsu’ura, and M. Kasahara, Postseismic deformation of the 2004 Niigata-Chuetsu earthquake (M6.8) by a dense GPS observation, Abstracts 2005 Japan Earth and Planetary Science Joint Meeting, S101–P012, 2005.

    Google Scholar 

  10. 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 

  11. 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, 51–56, 2006.

    Article  Google Scholar 

  12. Okada, Y, Internal deformation due to shear and tensile faults in a half-space, Bull. Seismol. Soc. Am., 82, 1018–1040, 1992.

    Google Scholar 

  13. The Research Group for Active Faults of Japan, Active Faults in Japan, revised edition, University of Tokyo Press, 437 pp., 1991.

    Google Scholar 

  14. Takahashi, H., S. Nakao, N. Okazaki, J. Koyama, T. Sagiya, T. Ito, F. Ohya, K. Sato, Y. Fujita, M. Hashimoto, Y. Hoso, T. Kato, T. Iinuma, J. Fukuda, T. Matsushima, Y. Kohno, and M. Kasahara, GPS observation of the first month of postseismic crustal deformation associated with the 2003 Tokachi-oki earthquake (MJMA 8.0), off southeastern Hokkaido, Japan, Earth Planets Space, 56, 377–382, 2004.

    Article  Google Scholar 

  15. Takahashi, H., T. Matsushima, T. Kato, A. Takeuchi, T. Tamaguchi, Y. Kohno, T. Katagi, J. Fukuda, K. Hatamoto, R. Doke, Y. Matsu’ura, and M. Kasahara, A dense GPS observation immediately after the 2004 mid-Niigata prefecture earthquake, Earth Planets Space, 57, 661–665, 2005.

    Article  Google Scholar 

  16. Uehira, K., T. Yamada, M. Shinohara, K. Nakahigashi, H. Miyamachi, Y. Iio, T. Okada, H. Takahashi, N. Matsuwo, K. Uchida, T. Kanazawa, and H. Shimizu, Precise aftershock distribution of the 2005 West Off Fukuoka Prefecture Earthquake (Mj=7.0) using a dense onshore and offshore seismic network, Earth Planets Space, 58, this issue, 1605–1610, 2006.

    Article  Google Scholar 

  17. Wessel, P. and W. H. F. Smith, New Version of the Generic Mapping Tools Released, EOS Trans. AGU, 76, 329, 1995.

    Article  Google Scholar 

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Correspondence to Shigeru Nakao.

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Nakao, S., Takahashi, H., Matsushima, T. et al. Postseismic deformation following the 2005 West Off Fukuoka Prefecture Earthquake (M7.0) derived by GPS observation. Earth Planet Sp 58, 1617–1620 (2006). https://doi.org/10.1186/BF03352671

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Key words

  • Postseismic deformation
  • Postseismic slip
  • 2005 West Off Fukuoka Prefecture Earthquake
  • GPS