Skip to main content
Earth, Planets and Space
Download PDF

Volume 57 Supplement 4

Special Issue: Special Section for the 2004 off the Kii peninsula earthquakes (2)

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, pages 345–350 (2005)Cite this article

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

  • 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.

    Article  Google Scholar 

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

    Article  Google Scholar 

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

    Article  Google Scholar 

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

    Google Scholar 

  • 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.

    Article  Google Scholar 

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

    Google Scholar 

  • 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.

    Google Scholar 

  • 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.

    Article  Google Scholar 

  • 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.

    Article  Google Scholar 

  • 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.

    Article  Google Scholar 

  • 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).

    Google Scholar 

  • 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).

    Google Scholar 

  • 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).

    Google Scholar 

  • 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.

    Google Scholar 

  • 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).

    Google Scholar 

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

Download references

Author information

Author notes

  1. Nobuyuki Yamada

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

Authors and Affiliations

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

    Wataru Suzuki, Tomotaka Iwata, Kimiyuki Asano & Nobuyuki Yamada

Authors
  1. Wataru Suzuki
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Tomotaka Iwata
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Kimiyuki Asano
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Nobuyuki Yamada
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Wataru Suzuki.

Rights and permissions

Open Access  This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made.

The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder.

To view a copy of this licence, visit https://creativecommons.org/licenses/by/4.0/.

Reprints and Permissions

About this article

Verify currency and authenticity via CrossMark

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). https://doi.org/10.1186/BF03352574

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1186/BF03352574

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