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Study of periodic vertical crustal movement in the Omaezaki peninsula, Central Japan, and it’s tectonic implications

Abstract

As a part of the earthquake prediction project in the Tokai district, levelling observations are being carried out four times a year in the Omaezaki peninsula. To analyze this time dependent data, an adjustment method in which the velocity of vertical motions, the amplitude and phase of annual variation of each benchmark are assumed to be unknown is applied. The main results of the analysis are summarized as follows: (1) at reference time 1981.0, the average phase of benchmarks along the levelling route between Kakegawa city and Omaezaki is about 21 degree, (2) at BM140-1 (Kakegawa), relative to BM92305 (Omaezaki) the maximum amplitude of one-year period variation is about 7.55 mm, i.e., the difference between the top and bottom of wave movement may reach 15.1 mm, and (3) the subsidence rate on the levelling route from BM140-1 to BM92305 decreases gradually as the benchmark is farther from the fixed point BM92305 with the maximum subsiding rate of 7.7 mm/yr.

The estimated rates of vertical deformation (i.e., after removing the seasonal variation) are inverted to estimate interplate coupling between the subducting Philippine Sea plate and the overriding continental plate. This facilitates understanding of the strain accumulation process in this complicated region. The results indicate that there is a high coupled region extending from 7 to 27 km deep, the maximum back-slip rate in this region reaches 27 mm/yr, and the direction of the plate convergence at the Suruga Trough is N 54°W ± 5°.

References

  1. Akaike, H., On entropy maximization principle, in Appl. Statis., edited by J. M. Krishnaiah, pp. 27–41, North-Holland, Amsterdam, 1977.

  2. Akaike, H., Likelihood and the Bayes procedure, in Bayesian Statistics, edited by J. M. Bernardo, M. H. DeGroot, D. V. Lindley, and A. F. M. Smith, pp. 143–166, Univ. Press, Valencia, Spain, 1980.

  3. El-Fiky, G. S., Temporal change of the crustal deformation and interplate coupling in the Tohoku district, northeast Japan—a New Approach—, Ph.D. Thesis, Fac. of Scien., Univ. of Tokyo, 190 pp., 1998.

  4. El-Fiky, G. S. and T. Kato, Interplate coupling in the Tohoku district, Japan, deduced from geodetic data inversion, J. Geophys. Res., 104, 20361–20377, 1999.

  5. EL-Fiky, G. S., T. Kato, and Y. Fujii, Vertical crustal movement in Tohoku district, Japan, deduced from dynamic adjustment of levelling and tidal data, Bull. Earthq. Res. Inst., Univ. of Tokyo, Japan, 71, 47–71, 1996.

  6. Geographical Survey Institute of Japan, Crustal movements in the Tokai district, Rep. Cood. Comm. Earthq. Pred., 18, 75–80, 1977 (in Japanese).

  7. Geographical Survey Institute of Japan, Crustal movements in the Tokai district, Rep. Cood. Comm. Earthq. Pred., 19, 96–99, 1978 (in Japanese).

  8. Geographical Survey Institute of Japan, Crustal movements in the Tokai district, Rep. Cood. Comm. Earthq. Pred., 58, 370–391, 1998 (in Japanese).

  9. Geographical Survey Institute of Japan, Crustal movements in the Tokai district, Rep. Cood. Comm. Earthq. Pred., 61, 293–326, 1999 (in Japanese).

  10. Inouchi, N. and T. Hosono, On the yearly change of ground movement detected by precise levelling surveys connecting Kakegawa to Omaezaki, Shizuoka prefecture, Japan, J. Geod. Soc. Japan, 33, 347–359, 1987.

  11. Ishibashi, K., Re-examination of a great earthquake expected in the Tokai district, central Japan—Possibility of the “Suruga bay earthquake”, Rep. Cood. Comm. Earthq. Pred., 17, 126–132, 1977 (in Japanese).

  12. Ishibashi, K., Specification of a soon-to-occur seismic faulting in the Tokai district, central Japan, based upon seismotectonics, in Earthquake Prediction, Maurice Ewing Ser., 4, edited by D. W. Simpson and P. G. Richards, pp. 297–332, Am. Geophys. Un., Washington, D.C., 1981.

  13. Ishida, M., Geometry and relative motion of the Philippine Sea plate and Pacific plate beneath the Kanto-Tokai district, Japan, J. Geophys. Res., 97, 489–513, 1992.

  14. Kanamori, H., The energy release in great earthquakes, J. Geophys. Res., 82, 2981–2987, 1977.

  15. Kato, T. and K. Tsumura, Vertical land movement in Japan as deduced from Tidal record (1951–1978), Bull. E.R.I., 54, 559–628, 1979 (in Japanese).

  16. Kotake, Y., T. Kato, S. Miyazaki, and A. Sengoku, Relative motion of the Philippine Sea plate derived from GPS observations and tectonics of the southwestern Japan, Earthquakes, 51, 171–180, 1998 (in Japanese).

  17. Jackson, D. D. and M. Matsu’ura, A Bayesian approach to nonlinear inversion, J. Geophys. Res., 90, 581–591, 1985.

  18. Matsumura, S., Focal zone of a future Tokai earthquake inferred from the seismicity pattern around the plate interface, Tectonophys., 273, 271–291, 1997.

  19. Minster, J. B. and T. H. Jordan, Rotation vectors for the Philippine Sea plate and Rivera plates (abstract), EOS trans. Am. Geophys. Un., 60, 958, 1979.

  20. Nishi, S., On the estimation of short-term crustal vertical movements in the vicinity of Omaezaki, J. Geod. Soc. Japan, 31, 212–219, 1985 (in Japanese).

  21. Peterson, E. T. and T. Seno, Factors affecting seismic momemt release rates in subduction zones, J. Geophys. Res., 89, B12, 10233–10248, 1984.

  22. Ruff, L. and H. Kanamori, The rupture process and asperity distribution of three great earthquakes from long-period diffracted P waves, Phys. Earth Planet. Inter., 31, 202–230, 1983.

  23. Sagiya, T., Crustal deformation cycle and interplate coupling in Shikoku, southwest Japan, Ph.D. Thesis, Fac. of Science, Univ. of Tokyo, 164 pp., 1995.

  24. Sagiya, T., Interplate coupling in the Tokai district, central Japan, deduced from continuous GPS data, Geophys. Res. Lett., 26, 2315–2318, 1999.

  25. Savage, J. C., A dislocation model of strain accumulation and release at a subduction zone, J. Geophys. Res., 88, 4984–4996, 1983.

  26. Scholz, C. H. and T. Kato, The behaviour of a convergent plate boundary: crustal deformation in the south Kanto district, Japan, J. Geophys. Res., 83, 783–797, 1978.

  27. Seno, T., The instantaneous rotation vector of the Philippine Sea plate relative to the Eurasian plate, Tectonophys., 42, 209–226, 1977.

  28. Seno, T., S. Stein, and A. E. Gripp, A model for the motion of the Philippine Sea plate consistent with NUVEL-1 and geological data, J. Geophys. Res., 98, 17941–17948, 1993.

  29. Somerville, P., The accommodation of plate collision by Deformation in the Izu block, Japan, Bull. Earthq. Res. Inst., Univ. of Tokyo, 53, 629–648, 1978.

  30. Tajima, M., N. Matsumoto, and M. Kaizu, Relation between seasonal variation of the Omaezaki peninsula and sea level change, J. Geod. Soc. Japan, 30, 107–113, 1984.

  31. Tanaka, M., Correlation between change in elevation of the Omaezaki peninsula and sea level change, Report at the sectional meeting of area of intensified observation in CCEP, 1981.

  32. Tanaka, M. and T. Gomi, Crustal movement observed from horizontal and vertical variations above the subduction zone, J. Geod. Soc. Japan, 35(2), 187–206, 1989.

  33. The Research Group for Active Faults of Japan, Active faults in Japan—sheet maps and inventories, University of Tokyo Press, 437 pp, 1991 (in Japanese).

  34. Tsuboi, C., Investigation on the deformation of the earth’s crust found by precise geodetic means, Jap. J. Astron. Geophys., 10, 93–248, 1933.

  35. Utsu, T., Space-time pattern of large earthquakes occurring off the pacific coast of the Japanese islands, J. Phys. Earth, 22, 325–342, 1974.

  36. Vanicek, P. and E. Krakiwsky, Geodesy, the Concepts, 691 pp., North Holland, 1982.

  37. Yabuki, T. and M. Matsu’ura, Geodetic data inversion using a Bayesian information criterion for spatial distribution of fault slip, Geophys. J. Int., 109, 363–375, 1992.

  38. Yoshioka, S., T. Yabuki, T. Sagiya, T. Tada, and M. Matsu’ura, Interplate coupling and relative plate motion in the Tokai district, central Japan, deduced from geodetic data inversion using ABIC, Geophys. J. Int., 113, 607–621, 1993.

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Correspondence to Gamal El-Fiky.

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Currently on leave from National Research Institute of Astronomy and Geophysics, Helwan, Egypt.

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El-Fiky, G., Kato, T. Study of periodic vertical crustal movement in the Omaezaki peninsula, Central Japan, and it’s tectonic implications. Earth Planet Sp 52, 25–35 (2000). https://doi.org/10.1186/BF03351610

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Keywords

  • Nankai Trough
  • Geographical Survey Institute
  • Interplate Coupling
  • Relative Plate Motion
  • Tokai Earthquake