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Source characteristics of shallow intraslab earthquakes derived from strong-motion simulations

Earth, Planets and Space volume 55, pages e5–e8 (2003)Cite this article

Abstract

Source modeling of recent shallow intraslab earthquakes is studied using strong-motion data. The total area of strong-motion generation areas obtained is smaller than the prediction from the empirical relationship for inland crustal earthquakes by Somerville and co-workers. Moreover, the ratio between the combined area of strong-motion generation areas obtained in this study and the area predicted by the empirical relationship, tends to decrease with focal depth. The stress drops on strong motion generation areas (or asperities) of shallow intraslab earthquakes increase with focal depth.

References

  • Bilek, S. L. and T. Lay, Comparison of depth dependent fault zone properties in the Japan Trench and Middle America Trench, Pure Appl. Geophys., 154, 433–456, 1999.

    Article  Google Scholar 

  • Birgoren, G., H. Miyake, and K. Irikura, Source model of 1999 November 12 Duzce, Turkey earthquake using empirical Green’s function method, Eos Trans. Am. Geophys. Union, 82(47), Fall Meet. Suppl., Abstract S52E-0689, 2001.

  • Campus, P. and S. Das, Comparison of the rupture and radiation characteristics of intermediate and deep earthquakes, J. Geophys. Res., 105, 6177–6189, 2000.

    Article  Google Scholar 

  • Chung, W.-Y. and H. Kanamori, Variation of seismic source parameters and stress drops within a descending slab and its implications in plate mechanics, Phys. Earth Planet. Inter., 23, 134–159, 1980.

    Article  Google Scholar 

  • Fukao, Y. and M. Kikuchi, Source retrieval for mantle earthquakes by iterative deconvolution of long-period P-waves, Tectonophys., 144, 249–269, 1987.

    Article  Google Scholar 

  • Fukuyama, E., M. Ishida, D. S. Dreger, and H. Kawai, Automated seismic moment tensor determination by using on-line broadband waveforms, Zisin 2 (J. Seism. Soc. Jpn.), 51, 149–156, 1998 (in Japanese with English abstract).

    Google Scholar 

  • Houston, H., Influence of depth, focal mechanism, and tectonic setting on the shape and duration of earthquake source time functions, J. Geophys. Res., 106, 11137–11150, 2001.

    Article  Google Scholar 

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

  • Kakehi, Y. and M. Yamauchi, Source modeling of a slab earthquake in the subducting Philippine Sea plate using strong ground motion records of high-density observation networks, Eos Trans. Am. Geophys. Union, 82(47), Fall Meet. Suppl., Abstract S42C-0679, 2001.

  • 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, 1998a.

    Google Scholar 

  • Kamae, K. and K. Irikura, A source model of the 1994 Northridge earthquake (MW = 6.7), Proc. 10th Japan Earthq. Eng. Symp., 643–648, 1998b (in Japanese).

  • Kanamori, H. and D. L. Anderson, Theoretical basis of some empirical relations in seismology, Bull. Seism. Soc. Am., 65, 1073–1095, 1975.

    Google Scholar 

  • Mikumo, T., Source process of deep and intermediate earthquakes as inferred from long-period P and S waveforms: 2 Deep-focus and intermediate-depth earthquakes around Japan, J. Phys. Earth, 19, 303–320, 1971.

    Article  Google Scholar 

  • Miyake, H., T. Iwata, and K. Irikura, Strong ground motion simulation and source modeling of the Kagoshima-ken Hokuseibu earthquakes of March 26(MJMA6.5) and May 13(MJMA6.3), 1997, using empirical Green’s function method, Zisin 2 (J. Seism. Soc. Jpn.), 51, 431–442, 1999 (in Japanese with English abstract).

    Google Scholar 

  • Miyake, H., T. Iwata, and K. Irikura, Estimation of rupture propagation direction and strong motion generation area from azimuth and distance dependence of source amplitude spectra, Geophys. Res. Lett., 28, 2727–2730, 2001.

    Article  Google Scholar 

  • Miyakoshi, K., T. Kagawa, H. Sekiguchi, T. Iwata, and K. Irikura, Source characterization of inland earthquakes in Japan using source inversion results, Proc. 12th World Conf. Earthq. Eng., 1850, 2000.

  • Morikawa, N. and T. Sasatani, Source models of great intra-slab earthquakes using the empirical Green’s function method, Abstr. 2001 Japan Earth and Planet. Sci. Joint Meet. [CD-ROM], Sp-P011, 2001.

  • Somerville, P., K. Irikura, R. Graves, S. Sawada, D. Wald, N. Abrahamson, Y. Iwasaki, T. Kagawa, N. Smith, and A. Kowada, Characterizing crustal earthquake slip models for the prediction of strong ground motion, Seism. Res. Lett., 70, 59–80, 1999.

    Article  Google Scholar 

  • Wessel, P. and W. H. F. Smith, New version of the Generic Mapping Tools released, Eos Trans. Am. Geophys. Union, 76, 329, 1995.

    Article  Google Scholar 

  • Wyss, M. and P. Molnar, Source parameters of intermediate and deep focus earthquakes in the Tonga arc, Phys. Earth Planet. Inter., 6, 279–292, 1972.

    Article  Google Scholar 

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Authors and Affiliations

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

    Kimiyuki Asano, Tomotaka Iwata & Kojiro Irikura

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  1. Kimiyuki Asano
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  2. Tomotaka Iwata
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  3. Kojiro Irikura
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Correspondence to Kimiyuki Asano.

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Asano, K., Iwata, T. & Irikura, K. Source characteristics of shallow intraslab earthquakes derived from strong-motion simulations. Earth Planet Sp 55, e5–e8 (2003). https://doi.org/10.1186/BF03351744

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  • DOI: https://doi.org/10.1186/BF03351744

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