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Estimation of the source model for the foreshock of the 2004 off the Kii peninsula earthquakes and strong ground motion simulation of the hypothetical Tonankai earthquake using the empirical Green’s function method

Earth, Planets and Space volume 57, pages345–350(2005)Cite this article

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Abstract

We estimated the source model for the foreshock of the 2004 off the Kii peninsula earthquakes by empirical Green’s function modeling. The size and the rise time of the strong motion generation area (SMGA) were estimated to be 30 × 15 km, and 0.9 sec, respectively. The stress drop of the SMGA was calculated to be 8.3 MPa. This model could reproduce long-period ground motions following the direct S-wave observed in the Osaka basin well. Using the derived source parameters, we simulated strong motions of the hypothetical Tonankai earthquake. Distribution of the seismic intensity derived here is similar to that obtained by the previous report. We could predict long-period ground motions which last for a long duration at the basin sites.

References

  1. Asano, K., T. Iwata, and K. Irikura, Source characteristics of shallow intraslab earthquakes derived from strong-motion simulations, Earth Planets Space, 55, e5–e8, 2003.

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

  3. Hartzell, S. H., Earthquake aftershock as Green’s functions, Geophys. Res. Lett., 5, 1–4, 1978.

  4. Irikura, K., Prediction of strong acceleration motions using empirical Green’s function, Proc. 7th Japan Earthq. Eng. Symp., 151–156, 1986.

  5. Ito, Y., T. Matsumoto, H. Kimura, H. Matsubayashi, K. Obara, and S. Sekiguchi, Spatial distribution of centroid moment tensor solutions for the 2004 off Kii peninsula earthquakes, Earth Planets Space, 57, this issue, 351–356, 2005.

  6. Japan Meteorological Agency, On Seismic Intensity, Gyosei, Tokyo, 238 pp., 1996 (in Japanese).

  7. Kamae, K. and K. Irikura, Source model of the 1995 Hyogo-ken Nanbu earthquake and simulation of near-source ground motion, Bull. Seism. Soc. Am., 88, 400–412, 1998.

  8. Kamae, K. and H. Kawabe, Source model composed of asperities for the 2003 Tokachi-oki, Japan, earthquake (MJMA= 8.0) estimated by the empirical Green’s function method, Earth Planets Space, 56, 323–327, 2004.

  9. Miyake, H., T. Iwata, and K. Irikura, Source characterization for broadband ground-motion simulation: kinematic heterogeneous source model and strong motion generation area, Bull. Seism. Soc. Am., 93, 2531–2545, 2003.

  10. Satake, K., T. Baba, K. Hirata, S. Iwasaki, T. Kato, S. Koshimura, J. Takenaka, and Y. Terada, Tsunami source of the 2004 off the Kii Peninsula earthquakes inferred from offshore tsunami and coastal tide gauges, Earth Planets Space, 57, 173–178, 2005.

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

  12. The Headquarters for Earthquake Research Promotion, On the long-term evaluation of earthquakes in the Nankai trough, http://www.jishin.go.jp/main/chousa/01sep nankai/index.htm, 2001a (in Japanese).

  13. The Headquarters for Earthquake Research Promotion, The interim report on strong ground motion evaluation methods for projected earthquakes in the Nankai trough, http://www.jishin.go.jp/main/kyoshindo/01b/index.htm, 2001b (in Japanese).

  14. The Headquarters for Earthquake Research Promotion, Seismic activity off-shore southeast of the Kii Peninsula, The 132nd Evaluation of the Earthquake Research Committee, http://www.jishin.go.jp/main/chousa/04octkiihantou/index-e.htm, 2004.

  15. Yagi, Y., On September 5, 2004 Southeast off of Kii Peninsula Earthquake, http://iisee.kenken.go.jp/staff/yagi/eq/Japan20040905/Japan20040905_1-j.html, 2004 (in Japanese).

  16. Yamanaka, Y., EIC seismological note, 152, http://www.eri.u-tokyo.ac.jp/sanchu/Seismo_Note/2004/EIC152.html, 2004 (in Japanese).

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Author notes

    • Nobuyuki Yamada

    Present address: Chuo Kaihatsu Corporation, 3-4-2, Nishi-Aoki, Kawaguchi, Saitama, 332-0035, Japan

Affiliations

  1. Disaster Prevention Research Institute, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan

    • Wataru Suzuki
    • , Tomotaka Iwata
    • , Kimiyuki Asano
    •  & Nobuyuki Yamada

  2. Chuo Kaihatsu Corporation, 3-4-2, Nishi-Aoki, Kawaguchi, Saitama, 332-0035, Japan

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    Correspondence to Wataru Suzuki.

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    Cite this article

    Suzuki, W., Iwata, T., Asano, K. et al. Estimation of the source model for the foreshock of the 2004 off the Kii peninsula earthquakes and strong ground motion simulation of the hypothetical Tonankai earthquake using the empirical Green’s function method. Earth Planet Sp 57, 345–350 (2005) doi:10.1186/BF03352574

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    Key words

    • Empirical Green’s function method
    • foreshock of the 2004 off the Kii peninsula earthquakes
    • source model
    • stress drop
    • strong ground-motion simulation
    • hypothetical Tonankai earthquake