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Journal of Seismology

, Volume 5, Issue 3, pp 411–431 | Cite as

Paleoseismology of the Itoigawa-Shizuoka tectonic line in central Japan

  • Koji Okumura
Article

Abstract

The 150-km-long Itoigawa-Shizuoka tectonic line active fault system (ISTL)in central Japan is one of the most active Quaternary fault systems inJapan. Estimated slip-rates on the fault system are as large as 10 m/ka, butthe historic seismicity has been low since 841 A.D. with no largeearthquakes recorded. The high slip rates contrast with the long time sincethe last major earthquake on the ITSL and indicates the high potential of a largeearthquake from the ISTL. Based on slip-rate estimates, more than 10 mof potential slip may have accumulated on the fault system since the 841A.D. earthquake. Recent paleoseismolgical studies on the middle andnorthern parts of the ISTL have determined that the average recurrenceinterval of surface-faulting earthquakes on the middle ISTL is 680 to 825years (Gofukuji fault) and 1258 to 1510 years in the northern ISTL. These data suggest the most recent event on both northern and middleISTL occurred in 841 A.D. The results highlight the high seismic potentialof the ISTL. Additional studies of the entire ISTL are needed to define theextent of the next rupture.

paleoseismology reverse-fault risk assessment slip-rate strike-slip fault trenching 

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References

  1. Allen, R.C., 1975, Geological criteria for evaluating seismicity, Geol. Soc. Amer. Bull. 86, 1041–1057.Google Scholar
  2. Fujimori, T., 1991, Active faults in the Suwa basin, and its evolution as a pull-apart basin on the Itoigawa-Shizuoka tectonic line, Central Japan. Geogr. Rev. Japan 64A, 665–696.Google Scholar
  3. Geographical Survey Institute, 1997, Digital map 1 km grid (Elevation), Geographical Survey Institute, Tsukuba, Japan, a Compact Disc.Google Scholar
  4. Geographical Survey Institute, 1997, Digital map 50 m grid (Elevation) Nippon-II, Geographical Survey Institute, Tsukuba, Japan, a Compact Disc.Google Scholar
  5. Headquarters for Earthquake Research Promotion, 1996, Report on the evaluation and survey results for Itoigawa-Shizuoka tectonic line active fault system (September 11, 1996), Headquarters for Earthquake Research Promotion, Prime Minster'sOffice [Currently available from: http://www.jishin.go.jp/main/welcomee. htm (in Japanese)].Google Scholar
  6. Imaizumi, T., Haraguchi, T., Nakata, T., Okumura, K., Togo, M., Ikeda, Y., Sato, H., Shimazaki, K., Miyauchi, T., Yanagi, H. and Ishimaru K., 1997, Slip rates on the Kamishiro active fault along the northern part of the Itoigawa-Shizuoka tectonic line, detected by long geo-slicer and drilling, Active Fault Res. 16, 35–43.Google Scholar
  7. Ikeda, Y. and Yonekura, N., 1986, Determination of late Quaternary rates of net slip on two major fault zones in central Japan, Bull. Dept. Geogr. Univ. Tokyo 18, 49–63.Google Scholar
  8. Kumamoto, T., 1998, Long-term conditional seismic hazard of Quaternary active faults in Japan, J. Seismol. Soc. Japan (Zisin), 2nd Series, 50, 53–71.Google Scholar
  9. Matsuda, T., 1974, Surface faults associated with Nobi (Mino-Owari) earthquake of 1891, Japan, Spec. Bull. Earthq. Res. Inst., Univ. Tokyo 13, 85–126.Google Scholar
  10. Matsuda, T., 1975, Magnitude and recurrence interval of earthquakes from a fault, J. Seismol. Soc. Japan (Zisin), 2nd Series 28, 269–282.Google Scholar
  11. Matsuda, T., 1998, Present state of long-term prediction of earthquakes based on active fault data in Japan, J. Seismol. Soc. Japan (Zisin), 2nd Series 50, 23–33.Google Scholar
  12. Matsumoto City Office, 1982, 1/2500 Topographic map, VIII-JC 38-4, Matsumoto City Office, Matsumoto, Japan, 1 sheet.Google Scholar
  13. Niklaus, T.R., 1991, CalibETH version 1.5b, ETH, Zürich, 2 diskettes and 151 pp.Google Scholar
  14. Okumura, K., Saito, K., Fukuzawa, H., Mizuno, K., Kariya, Y. and Fujiwara, O., 2000, Re-examination of the rupture history of the Itoigawa-Shizuoka tectonic line active fault system, Chikyu Monthly, Special issue 28, 92–100.Google Scholar
  15. Okumura, K., and Tsukuda, E., 1995, 1988 Trenching study of the Gofukuji fault of the Itoigawa-Shizuoka tectonic line active fault system at Namiyanagi, Matsumoto, Central Japan, Active Fault Res. 13, 54–59.Google Scholar
  16. Okumura, K., Shimokawa, K., Yamazaki H. and Tsukuda E., 1994, Recent surface faulting events along the middle section of the Itoigawa-Shizuoka tectonic line – Trenching Survey of the Gofukuji Fault near Matsumoto, Central Japan, J. Seismol. Soc. Japan (Zisin), 2nd Series 46, 425–438.Google Scholar
  17. Okumura, K., Fukuzawa, H., Saito, K., Mizuno, K. and Fujiwara O., 1998a, High-resolution Multi-proxy Analyses and Dating of Lake Deposits Affected by Recent Faulting Events: a Case Study of the Suwa Lake on the Itoigawa-Shizuoka Tectonic Line (ISTL), Central Japan, EOS, Transactions, American Geophysical Union 79, F614.Google Scholar
  18. Okumura, K., Imura, R., Imaizumi, T., Togo, M., Sawa, H., Mizuno, K., Kariya, Y. and Saito E., 1998b, Recent surface faulting events along the northern part of the Itoigawa-Shizuoka tectonic line – Trenching survey of the Kamishiro fault and East Matsumoto basin faults, Central Japan –, J. Seismol. Soc. Japan (Zisin), 2nd Series 50, 35–51.Google Scholar
  19. Okumura, K. Mizuno, K., Fukuzawa, H., Saito, K. and Fujiwara, O., 1998c, Paleoseismology of the middle part of Itoigawa-Shizuoka tectonic line active fault system, Abstracts, 1998 Japan Earth and Planetary Science Joint Meeting, Tokyo, Japan, 26–29 May 1998, 317.Google Scholar
  20. Research Group for Active Faults in Japan, 1991, Active Faults in Japan, revised edition. University of Tokyo Press, Tokyo, 437 pp.Google Scholar
  21. Research Group for Ito-Shizu Tectonic Line Active Faults, 1988, Late Quaternary activities in the central part of Itoshizu tectonic line – excavation study at Wakamiya and Osawa faults, Nagano prefecture, central Japan, Bull. Earthq. Res. Inst., Univ. Tokyo 63, 349–408.Google Scholar
  22. Saito, K., Fukuzawa, H., Okumura, K., Mizuno, K. and Fujiwara, O., 1998, Anomalous layers in lake sediments from Lake Suwa and slip on the faults at the Suwa basin since 16,500 Cal. y. B.P. Abstracts, 1998 Japan Earth and Planetary Science Joint Meeting, Tokyo, Japan, 26–29 May 1998, 197.Google Scholar
  23. Sato, H., 1996, Inversion tectonics of Japanese Islands, Active Fault Res. 15, 128–132.Google Scholar
  24. Seno, T. and Sakurai, T., 1996, Can the Okhotsk plate be discriminated from the North American plate? J. Geophys. Res. 101, 11305–11315.Google Scholar
  25. Shimokawa, K., Mizuno, K., Imura, R., Okumura, K., Sugiyama, Y. and Yamazaki, H., 1995, Strip map of the Itoigawa-Shizuoka tectonic line active fault system, Tectonic Map Series 11, Geological Survey of Japan, Tsukuba, Japan.Google Scholar
  26. Toda, S, Miura, D., Miyakoshi, K. and Inoue, D., 2000, Recent surface faulting events along the southern part of the Itoigawa-Shizuoka tectonic line, J. Seismol. Soc. Japan (Zisin), 2nd Series 52, 445–468.Google Scholar
  27. Togo, M. and Research Group for the Excavation of Okaya Fault, 1988, Rupture history of Okaya fault in the Itoigawa-Shizuoka tectonic line active fault system. Programme and Abstracts, Seismol. Soc. Japan, 1988 1, 6–8 April, 1988, Tokyo, 223.Google Scholar
  28. Usami, T., 1996, Materials for Comprehensive List of Destructive Earthquakes in Japan [revised and enlarged edition], University of Tokyo Press, Tokyo, 493 pp.Google Scholar
  29. Utsu, T., 1996, A Catalog of Damage Earthquakes in the World, an online WWW catalogue at the Earthquake Research Institute, University of Tokyo [http://www.eri.utokyo. ac.jp/UTSU/index.html].Google Scholar
  30. Wei, D. and Seno, T., 1998, Determination of the Amurian plate motion in mantle dynamics and plate interactions in East Asia, In: M. Flower et al. (eds), Geodynamics Series 27, American Geophysical Union, Washington, pp. 337–346.Google Scholar
  31. Wells, D.L. and Coppersmith, K.J., 1994, New empirical relationships among magnitude, rupture length, rupture width, rupture area, and surface displacement, Bull. Seism. Soc. Amer. 84, 974–1002.Google Scholar
  32. Wessel, P. and Smith, W.H.F., 1995, New version of the Generic Mapping Tools released, EOS Trans. Amer. Geophys. Union 76, 329.Google Scholar
  33. Working Group for Compilation of 1:2,000,000 Active Fault Map of Japan, 2000, New 1:2,000,000 Active Fault Map of Japan, An attachment map to Active Fault Research, 19.Google Scholar
  34. Yamazaki, H., Shimokawa, K., Mizuno, K. and Kashima, K., 1990, Subsurface geology and active faults in Suwa tectonic basin, Programme and Abstracts, Japan Assoc. Quaternary Res. 20, 80–81.Google Scholar

Copyright information

© Kluwer Academic Publishers 2001

Authors and Affiliations

  • Koji Okumura
    • 1
  1. 1.Department of Geography, Graduate School of LettersHiroshima University Higashi-HiroshimaHiroshimaJapan

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