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Volume 58 Supplement 1

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

Rupture process of the 2005 West Off Fukuoka Prefecture earthquake obtained from strong motion data of K-NET and KiK-net

Earth, Planets and Space volume 58, pages 37–43 (2006)Cite this article

Abstract

We have investigated the rupture process of the 2005 West Off Fukuoka Prefecture earthquake by the multitime- window linear waveform inversion method using the strong ground motion data recorded at 11 K-NET and KiK-net stations. From the waveforms of the P-wave portion, it is indicated that the energy release in the first few seconds was markedly lower than the subsequent part, and this causes difficulty in identifying onset of the S-wave. To decide an appropriate time window for the waveform inversion, we estimate the S-wave onset using aftershock records. The inverted slip distribution shows a single asperity of 8 km × 6 km and its center located 8 km to the southeast and 6 km above the hypocenter. The asperity explains most of the large-amplitude signals in the observed waveforms. The turning point from the initial low-energy-release rupture to the main high-energyrelease rupture is estimated from the spatial variation of the observed initial rupture phase. It is found 3.3 s after the initiation of the rupture at about 4 km to the southeast of the hypocenter. Stress drop during the initial rupture is estimated to be in the same order of those of moderate size aftershocks, which indicates that the initial rupture is an ordinary dynamic rupture.

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.

  • Asano, K. and T. Iwata, Source process and near-source ground motions of the 2005West Off Fukuoka Prefecture earthquake, Earth Planets Space, 58, this issue, 93–98, 2006.

    Article  Google Scholar 

  • Beroza, G. C. and W. L. Ellsworth, Properties of the seismic nucleation phase, Tectonophysics, 261, 209–227, 1996.

    Article  Google Scholar 

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

    Google Scholar 

  • Eshelby, J. D., The determination of the elastic field of an ellipsoidal inclusion, and related problems, Proc. Royal Soc. London, A241, 376–396, 1957.

    Article  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 (in Japanese).

    Google Scholar 

  • Geological Survey of Japan, AIST, Gravity field around the source region of the 2005 west off Fukuoka earthquake, Report of the coordinating committee for earthquake prediction, 74, 507–509, Geographical Survey Institute, 2005a (in Japanese).

    Google Scholar 

  • Geological Survey of Japan, AIST, Seismic profiles acquired in 1985 by Geological Survey of Japan, in aftershock area of 2005 Fukuoka earthquake, 74, 507–509, Geographical Survey Institute, 2005b (in Japanese).

    Google Scholar 

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

    Google Scholar 

  • Horikawa, H., Rupture process of the 2005 West Off Fukuoka Prefecture, Japan, earthquake, Earth Planets Space, 58, this issue, 87–92, 2006.

    Article  Google Scholar 

  • Hydrographic and Oceanographic Department, Japan Coast Guard, An interim report of surveys of seabed in the source region of the west off Fukuoka prefecture earthquake, Report of the coordinating committee for earthquake prediction, 74, 501–504, Geographical Survey Institute, 2005 (in Japanese).

    Google Scholar 

  • Karakida, Y., S. Tomita, S. Shimoyama, and K. Chijiwa, 1:50,000 Geologic map “Fukuoka”, 1994 (in Japanese).

    Google Scholar 

  • 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 

  • Lawson, C. and R. Hanson, Solving Least Squares Problems, 340 pp., Prentice-Hall, Inc., New Jersey, 1974.

    Google Scholar 

  • Mori, J. and H. Kanamori, Initial rupture of earthquakes in the 1995 Ridgecrest, California sequence, Geophys. Res. Lett., 23, 2437–2440, 1996.

    Article  Google Scholar 

  • Morikawa, N., S. Adachi, H. Takenaka, T. Kunugi, and H. Fujiwara, Analysis of strong motion recrods and station investigation of K-NET and KiK-net, JSPS report, 2005 (in Japanese).

    Google Scholar 

  • Nakamichi, S. and H. Kawase, Broad band strong motion prediction by hybrid method considering 3D velocity structure in Fukuoka city, Journal of structural and construction engineering: transactions of AIJ, 560, 83–91, 2002 (in Japanese).

    Google Scholar 

  • Obara, K., K. Kasahara, S. Hori, and Y. Okada, A densely distributed highsensitivity seismograph network in Japan: Hi-net by National Research Institute for Earth Science and Disaster Prevention, Review of Scientific Instruments, 76, 021301-doi:10.1063/1.1854197, 2005.

  • Sekiguchi, H. and T. Iwata, Rupture Process of the 2000 Tottori-ken Seibu, Japan, earthquake by joint inversion of strong motion and geodetic data, submitted to Bull. Seism. Soc. Am.

  • 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 

  • Takenaka, H., T. Nakamura, Y. Yamamoto, G. Toyokuni, and H. Kawase, Precise location of the fault plane and the onset of the main rupture of the 2005 West Off Fukuoka Prefecture earthquake, Earth Planets Space, 58, this issue, 75–80, 2006.

    Article  Google Scholar 

  • Ukawa, M., M. Ishida, S. Matsumura, and K. Kasahara, Hypocenter determination method of the Kanto-Tokai observational network for microearthquakes, Rep. Nat’l. Res. Inst. Earth Sci. Disas. Prev., 53, 1–88, 1984 (in Japanese).

    Google Scholar 

  • Wessel, P. and W. Smith, New version of the generic mapping tools, EOS., Trans. Am. Geophys. Un., 76, 445–446, 1995.

    Article  Google Scholar 

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Authors and Affiliations

  1. Active Fault Research Center, GSJ, National Institute of Advanced Industrial Science and Technology, 1-1-1 Higashi, Tsukuba, Ibaraki, 305-8567, Japan

    Haruko Sekiguchi

  2. National Research Institute for Earth Science and Disaster Prevention, 3-1 Tennodai, Tsukuba, Ibaraki, 305-0006, Japan

    Shin Aoi, Nobuyuki Morikawa, Takashi Kunugi & Hiroyuki Fujiwara

  3. Hot Springs Research Institute of Kanagawa Prefecture, 586 Iriuda, Odawara, Kanagawa, 250-0031, Japan

    Ryou Honda

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

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Sekiguchi, H., Aoi, S., Honda, R. et al. Rupture process of the 2005 West Off Fukuoka Prefecture earthquake obtained from strong motion data of K-NET and KiK-net. Earth Planet Sp 58, 37–43 (2006). https://doi.org/10.1186/BF03351911

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  • DOI: https://doi.org/10.1186/BF03351911

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