- Open Access
Postseismic slip associated with the 2007 Chuetsu-oki, Niigata, Japan, Earthquake (M 6.8 on 16 July 2007) as inferred from GPS data
Earth, Planets and Space volume 60, pages1087–1091(2008)
Postseismic crustal deformation associated with the 2007 Chuetsu-oki Earthquake, which occurred on 16 July 2007 with a magnitude of 6.8 at the southeastern rim of the Sea of Japan, near the coast of Mid-Niigata Prefecture, Central Japan, are detected by GPS observations. We analyzed continuous GPS data from the sites of the Geographical Survey Institute of Japan (GSI) and another dense temporary network, which we established just after the main shock to reveal spatio-temporal evolution of postseismic slip for 50 days after the main shock by geodetic inversion methods. Four models of faults are configured following Ohta et al. (2008, this issue), and these are optimized based on ABIC (Akaike’s Bayesian Information Criterion). The results of the inversion analysis show that the postseismic slip on the faults occurred at a downdip and updip extension of the coseismically slipped portion. The slip in the shallower portion decayed to be negligible within 2 weeks, and the slip in the deeper portion was still large after the slip in the shallower portion had almost terminated.
Akaike, H., On entropy maximization principle, in Application of Statistics edited by P. R. Krishnaiah, pp. 27–41, North-Holland, Amsterdam, 1977.
Akaike, H., Likelihood and the Bayes procedure, in Bayesian Statistics, edited by J. M. Bernardo, M. H. DeGroot, D. V. Lindley, and A. F. M. Smith, pp. 143–166, Univ. Press, Valencia, Spain, 1980.
Hashimoto, M., H. Takahashi, R. Doke, M. Kasahara, A. Takeuchi, K. Onoue, Y. Hoso, Y. Fukushima, K. Nakamura, F. Ohya, R. Honda, M. Ichiyanagi, T. Yamaguchi, T. Maeda, and Y Hiramatsu, Postseismic displacements following the 2007 Noto peninsula earthquake detected by dense GPS observations, Earth Planets Space, 60(2), 139–144, 2008.
Heki, K., S. Miyazaki, and H. Tsuji, Silent fault slip following an interplate thrust earthquake at the Japan Trench, Nature, 386(6625), 595–598, 1997.
Iinuma, T., T. Kato, and M. Hori, Inversion of GPS velocity and seismicity data to yield changes in stress in the Japanese Islands, Geophys. J. Int., 160(2), 417–434, 2005.
Jonsson, S., P. Segall, R. Pedersen, and G. Bjornsson, Post-earthquake ground movements correlated to pore-pressure transients, Nature, 424(6945), 179–183, doi:10.1038/nature01776, 2003.
Miura, S., Y Suwa, A. Hasegawa, and T. Nishimura, The 2003 M 8.0 Tokachi-Oki earthquake—How much has the great event paid back slip debts?, Geophys. Res. Lett., 31(5), L05613, 2004.
Miura, S., T. Iinuma, S. Yui, N. Uchida, T. Sato, K. Tachibana, and A. Hasegawa, Co- and post-seismic slip associated with the 2005 Miyagi-oki earthquake (M7.2) as inferred from GPS data, Earth Planets Space, 58(12), 1567–1572, 2006.
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, 1997.
Nakao, S., H. Takahashi, T. Matsushima, Y. Kohno, and M. Ichiyanagi, Postseismic deformation following the 2005 West Off Fukuoka Prefecture Earthquake (M7.0) derived by GPS observation, Earth Planets Space, 58(12), 1617–1620, 2006.
Ohta, Y., S. Miura, T. Iinuma, K. Tachibana, T. Matsushima, H. Takahashi, T. Sagiya, T. Ito, S. Miyazaki, R. Doke, A. Takeuchi, K. Miyao, A. Hirao, T. Maeda, T. Yamaguchi, M. Takada, M. Iwakuni, T. Ochi, I. Meilano, and A. Hasegawa, Coseismic and postseismic deformation related to the 2007 Chuetsu-oki, Niigata Earthquake, Earth Planets Space, 60, this issue, 1081–1086, 2008.
Ozawa, T., S. Nishimura, Y. Wada, and H. Ohkura, Coseismic deformation of the Mid Niigata prefecture Earthquake in 2004 detected by RADARSAT/InSAR, Earth Planets Space, 57(5), 423–428, 2005.
Pollitz, F. F., G. Peltzer, and R. Bürgmann, Mobility of continental mantle: Evidence from postseismic geodetic observations following the 1992 Landers earthquake, J. Geophys. Res., 105(B4), 8035–8054, 2000.
Sagiya, T., S. Miyazaki, and T. Tada, Continuous GPS Array and Present-day Crustal Deformation of Japan, Pure Appl. Geophys., 157(2–12), 2303–2322, 2000.
Sagiya, T., M. Ohzono, S. Nishiwaki, Y. Ohta, T. Yamamuro, F. Ki-mata, and M. Sasaki, Postseismic Deformation Following the 2004 Mid-Niigata Prefecture Earthquake around the Southern Part of the Source Region, Zisin (J. Seismol. Soc. Japan), 58(3), 359–369, 2005 (in Japanese with English abstract).
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(3), 377–382, 2004.
Ueda, H., M. Ohtake, and H. Ohtake, Afterslip of the plate interface following the 1978 Miyagi-Oki, Japan, earthquake, as revealed from geodetic measurement data, Tectonophys., 338(1), 45–57, 2001.
Ueda, H., M. Ohtake, and H. Sato, Postseismic crustal deformation following the 1993 Hokkaido Nansei-oki earthquake, northern Japan: Evidence for a low-viscosity zone in the uppermost mantle, J. Geophys. Res., 108(B3), 2151, doi:10.1029/2002JB002067, 2003.
Wessel, P. and W. Smith, New, improved version of Generic Mapping Tools released, Trans. Am. Geophys. Union (EOS), 79(47), 579, 1998.
Yamanaka, Y., The Niigataken Chuetsu-Oki Earthquake, 16 July 2007 (M 6.6), NGY seismological notes, 2a, http://www.seis.nagoya-u.ac.jp/sanchu/SeismoNote/2007/NGY2a.html, 2007 (in Japanese).
Yagi, Y. and M. Kikuchi, Partitioning between seismogenic and aseismic slip as highlighted from slow slip events in Hyuga-nada, Japan, Geo-phys. Res. Lett., 30(2), 1087, doi:10.1029/2002GL015664, 2003.
Yagi, Y., Source process of the Niigataken Chuetsu-Oki Earthquake, 16 July 2007, http://www.geo.tsukuba.ac.jp/pressHP/yagi/EQ/2007niigata/, 2007 (in Japanese).
About this article
Cite this article
Iinuma, T., Ohta, Y., Miura, S. et al. Postseismic slip associated with the 2007 Chuetsu-oki, Niigata, Japan, Earthquake (M 6.8 on 16 July 2007) as inferred from GPS data. Earth Planet Sp 60, 1087–1091 (2008). https://doi.org/10.1186/BF03353141
- Crustal deformation
- postseismic slip
- strain concentrated zone
- Niigata-Kobe Tectonic Zone