Skip to main content

Volume 56 Supplement 3

Special Issue: Special section for the 2003 Tokachi-oki earthquake

  • Letter
  • Published:

Changes in groundwater level associated with the 2003 Tokachi-oki earthquake

Abstract

Groundwater level and flow rate at 44 wells are continuously observed by the Geological Survey of Japan and the Shizuoka and Gifu Prefectural Governments for monitoring seismic and volcanic activities. The 2003 Tokachi-oki earthquake (M8.0) occurred off the south coast of Hokkaido Island, Japan on September 26, 2003. The epicentral distance to the nearest observation well is about 250 km and that to the farthest is about 1200 km. At the 22 wells, we detected changes in groundwater level or flow rate in relation to the earthquake. Most of the changes are coseismic step-like changes and/or short-period oscillations. In the nearest two observation wells, long-period oscillations with the periods of 39 and 53 minutes were also observed for several days after the earthquake, which is likely due to tsunami. In comparison between distributions of changes in groundwater level and theoretical coseismic strain by the fault model, it is clear that step-like increases were found in the contraction area of the coseismic strain. The relationship between amounts of the observed step-like groundwater-level changes and theoretical ones, calculated by the fault model using strain sensitivities of groundwater level indicates that the groundwater levels in the several wells responded to the coseismic strain.

References

  • Akita, F. and N. Matsumoto, Coseismic groundwater level changes in hot spring wells in Hokkaido induced by four earthquakes larger than M7.5 between 1993 and 1994, Jishin (J. Seismol. Soc. Japan), 53, 193–204, 2001 (in Japanese with English abstract).

    Google Scholar 

  • Geographical Survey of Institute, http://www.gsi.go.jp/WNEW/PRESS-RELEASE/2003/0926-2.htm, 2003 (in Japanese).

  • Igarashi, G. and H. Wakita, Tidal responses and earthquake-related changes in the water level of deep wells, J. Geophys. Res., 96, 4269–4278, 1991.

    Article  Google Scholar 

  • Japan Meteorological Agency, Seismological Summary, Newsletter Seis-mol. Soc. Japan, 15, 16–26 (in Japanese).

  • Koizumi, N., E. Tsukuda, M. Takahashi, T. Sato, N. Matsumoto, H. Ito, Y. Kuwahara, A. Cho, and T. Sato, Groundwater level observation of Geological Survey of Japan in and around the Kinki district, Japan for earthquake prediction research, J. Balneol. Soc. Japan, 49, 18–33, 1999 (in Japanese with English abstr

    Google Scholar 

  • Koizumi, N., Y. Kitagawa, M. Takahashi, T. Sato, N. Matsumoto, H. Ito, Y. Kuwahara, A. Cho, and T. Sato, Changes in groundwater level and crustal strain in and around the Kinki district related to the 2001 Geiyo Earthquake, Jishin (J. Seismol. Soc. Japan), 55, 119–127, 2002 (in Japanese with English abstract).

    Google Scholar 

  • Matsumoto, K., T. Sato, T. Takanezawa, and M. Ooe, GOTIC2: A program for computation of oceanic tidal loading effect, J. Geodetic Soc. Japan, 47, 243–278, 2001.

    Google Scholar 

  • Matsumoto, N., T. Sato, N. Matsushima, F. Akita, T. Shibata, and A. Suzuki, Hydrological anomalies associated with crustal deformation before the 2000 eruption of Usu volcano, Japan, Geophys. Res. Lett., 29, 10.1029/2001GL013968, 2002.

  • Naito, H. and S. Yoshikawa, A program to assist crustal deformation analysis, Jishin (J. Seismol. Soc. Japan), 52, 101–103, 1999 (in Japanese with English abstract).

    Google Scholar 

  • Okada, Y., Internal deformation due to shear and tensile faults in a halfspace, Bull. Seismol. Soc. Am., 82, 1018–1040, 1992.

    Google Scholar 

  • Roeloffs, E., Hydrologic precursors to earthquake: A review, Pure Appl. Geophys., 126, 177–209, 1988.

    Article  Google Scholar 

  • Roeloffs, E., Poroelastic techniques in the study of earthquake-related hy-drologic phenomena, in Advances in Geophysics, edited by R. Dmowska, pp. 135–195, Academic Press, San Diego, 1996.

    Google Scholar 

  • Sato, T., H. Wakita, K. Notsu, and G. Igarashi, Anomalous hot spring water changes: Possible precursors of the 1989 volcanic eruption off the east coast of the Izu Peninsula, Geochem. J., 26, 73–83, 1992.

    Article  Google Scholar 

  • Sato, T., N. Matsumoto, F. Akita, T. Shibata, A. Suzuki, N. Matsushima, and M. Takahashi, Anomalous groundwater-level changes in Data City associated with the 2000 eruption of Usu Volcano, Kazan (Bull. Volcanol. Soc. Japan), 47, 171–176, 2002 (in Japanese with English abstr

    Google Scholar 

  • Takahashi, M., N. Koizumi, T. Sato, N. Matsumoto, H. Ito, Y. Kuwahara, A. Cho, and T. Sato, Changes in groundwater level and crustal strain in and around the Kinki district related to the Western Tottori Earthquake, Jishin (J. Seismol. Soc. Japan), 55, 75–82, 2002 (in Japanese with English abstract).

    Google Scholar 

  • Tamura, Y., T. Sato, M. Ooe, and M. Ishiguro, A procedure for tidal analysis with a Bayesian information criterion, Geophys. J. Int., 104, 507–516.

  • Wakita, H., Water wells as possible indicators of tectonic strain, Science, 189, 553–555.

  • Yamanaka, Y. and M. Kikuchi, Source process of the recurrent Tokachi-oki earthquake on September 26, 2003, inferred from teleseismic body waves, Earth Planets Space, 55, e21–e24, 2003.

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Tsutomu Sato.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Sato, T., Matsumoto, N., Kitagawa, Y. et al. Changes in groundwater level associated with the 2003 Tokachi-oki earthquake. Earth Planet Sp 56, 395–400 (2004). https://doi.org/10.1186/BF03353071

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1186/BF03353071

Key words