Skip to main content

Advertisement

We’d like to understand how you use our websites in order to improve them. Register your interest.

Spatial distribution of static stress drops for aftershocks of the 2005 West Off Fukuoka Prefecture earthquake

Abstract

We investigated the spatial distribution of static stress drops of the aftershocks of the 2005 West Off Fukuoka Prefecture earthquake, with the aim of assessing the possibility that another earthquake will occur on the SE extension of the earthquake fault. The waveforms from six temporary online telemetry stations installed in and around the aftershock region were measured. Small stress drops were estimated for the aftershocks that occurred relatively distant from the SE and NE ends of the earthquake fault. Conversely, the aftershocks that occurred around the SE end of aftershock region are characterized by large stress drops. These results imply the possibility of a stress concentration at the SE edge of the main shock fault.

References

  1. Asano, K. and T. Iwata, Source process and near-source ground motions of the 2005 West Off Fukuoka Prefecture earthquake, Earth Planets Space, 58, 93–98, 2

    Article  Google Scholar 

  2. Boatwright, J., Detailed spectral analysis of two small New York state earthquakes, Bull. Seismol. Soc. Am., 68, 1177–1131, 1978.

    Google Scholar 

  3. Geographical Survey Institute, Earthquake: Mj7.0 in West-off Fukuoka pref. (Northern Kyushu), on 20 March 2005, http://www.jishin.go.jp/main/chousa/05marfukuoka/p17.gif, 2005.

    Google Scholar 

  4. Hanks, T. C. and M. Wyss, The use of body wave spectra in the determination of seismic source parameters, Bull. Seismol. Soc. Am., 62, 561–569, 1972.

    Google Scholar 

  5. Iio, Y., A new empirical method to estimate the site response by stacking observed velocity waveforms, 2006 (in preparation).

    Google Scholar 

  6. Iio, Y. and Y. Kobayashi, A physical understanding of large intraplate earthquakes, Earth Planets Space, 54, 1001–1004, 2002.

    Article  Google Scholar 

  7. Jin, A. and E. Fukuyama, Seismic Energy for Shallow Earthquakes in Southwest Japan, Bull. Seismolog. Soc. Am., 95, 1314–1333, 2005.

    Article  Google Scholar 

  8. Kinoshita, S. and M. Ohike, Scaling Relations of Earthquakes That Occurred in the Upper Part of the Philippine Sea Plate beneath the Kanto Region, Japan, Estimated by Means of Borehole Recordings, Bull. Seis-mol. Soc. Am., 92(2), 611–624, DOI: 10.1785/0120010134, 2002.

    Article  Google Scholar 

  9. Ogasawara, H., S. Sato, S. Nishi, H. Kawakata, and the research group for Semi-controlled earthquake-generation experiments in South African deep gold mines, Temporal variation of seismic parameters associated with an Mw2 event monitored at a 100–200 m distance, Seismogenic Process Monitoring, 173–184, Balkema, Rotterdam, 2002.

    Google Scholar 

  10. Research Group for Active Faults of Japan, Active faults in Japan, sheet maps and inventories, Univ. of Tokyo Press, Tokyo, 1980.

    Google Scholar 

  11. Shimizu, H., H. Takahashi, T. Okada, T. Kanazawa, Y. Iio, H. Miyamachi, T. Matsushima, M. Ichiyanagi, N. Uchida, T. Iwasaki, H. Katao, K. Goto, S. Matsumoto, N. Hirata, S. Nakao, K. Uehira, M. Shinohara, H Yakiwara, N. Kame, T. Urabe, N. Matsuwo, T. Yamada, A. Watanabe, K. Nakahigashi, B. Enescu, K. Uchida, S. Hashimoto, S. Hirano, T. Yagi, Y. Kohno, T. Ueno, M. Saito, and M. Hori, Aftershock seismicity and fault structure of the 2005 West Off Fukuoka Prefecture Earthquake (MJMA7.0) derived from urgent joint observations, Earth Planets Space, 58, this issue, 1599–1604, 2006.

    Article  Google Scholar 

Download references

Author information

Affiliations

Authors

Corresponding author

Correspondence to Yoshihisa Iio.

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Iio, Y., Katao, H., Ueno, T. et al. Spatial distribution of static stress drops for aftershocks of the 2005 West Off Fukuoka Prefecture earthquake. Earth Planet Sp 58, 1611–1615 (2006). https://doi.org/10.1186/BF03352670

Download citation

Key words

  • Stress drop
  • aftershock
  • site effect
  • intraplate earthquake
  • anelastic attenuation
  • stress