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Volume 54 Supplement 11

Special Issue: Slip and Flow Processes in and below the Seismogenic Region

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Crustal deformation around the northern and central Itoigawa-Shizuoka Tectonic Line

Earth, Planets and Space volume 54, pages 1059–1063 (2002)Cite this article

Abstract

We established a dense permanent GPS array around the northern and central Itoigawa-Shizuoka Tectonic Line (ISTL) in order to study loading processes of inland active faults. 1–4 years observation has revealed concentrated deformation (about 0.3 ppm/yr) around the East Matsumoto-Basin Fault, an active fault along the ISTL, consistent with historic triangulation data. The deformation pattern is explained by dislocation models incorporating horizontal detachment fault with steady slip in the upper crust. However, deformation data alone cannot determine the model and there exist different possibilities. The vicinity of the Gofukuji fault is being deformed less in spite of the large long-term slip rate. These observations indicate that the deformation pattern is laterally heterogeneous along the ISTL. The two faults are considered to be loaded by different mechanisms.

References

  • Hirahra, K., M. Ando, Y. Hoso, Y. Wada, and T. Nakano, Following fault motions by GPS observation, Earth Monthly, 20, 149–153, 1998 (in Japanese).

    Google Scholar 

  • Hugentobler, U., S. Schaer, and P. Fridez (ed.), Documentation of the Bernese GPS software version 4.2, 515 pp., 2001.

  • Ikami, A., T. Yoshii, S. Kubota, Y. Sasaki, A. Hasemi, T. Moriya, H. Miyamachi, R. S. Matsu’ura, and K. Wada, A seismic-refraction profile in and around Nagano prefecture, central Japan, J. Phys. Earth, 34, 457–474, 1986.

    Article  Google Scholar 

  • Ikeda, Y. and N. Yonekura, Determination of late Quaternary rates of net slip on two major fault zones in central Japan, Bull. Dept. Geogr. Univ. Tokyo, 18, 49–63, 1986.

    Google Scholar 

  • Kato, K. and T. Sato, Geology of the Shinano-Ikeda region, Report of regional geological studies (with 1:50000 map), Geological Survey of Japan, 93 pp., 1983.

  • Mao, A., C. G. A. Harrison, and T. Dixon, Noise in GPS coordinate time series, J. Geophys. Res., 104, 2797–2816, 1999.

    Article  Google Scholar 

  • Okubo, S., Y. Ikeda, T. Kumamoto, G. Seta, N. Matsuta, H. Chiba, and Y. Arai, 2-D and 3-D subsurface density structure in the northern part of the Itoigawa-Shizuoka Tectonoic Line derived by gravity surveying, J. Geod. Soc. Japan, 46, 177–186, 2000.

    Google Scholar 

  • Okumura, K., K. Shimokawa, H. Yamazaki, and E. Tsukuda, Recent surface faulting events along the middle section of the Itoigawa-Shizuoka Tectonic Line—trenching survey of the Gofukuji Fault near Matsumoto, central Japan—, Zisin, 46, 425–438, 1994 (in Japanese with English abstract).

    Google Scholar 

  • Okumura, K., R. Imura, T. Imaizumi, M. Togo, H. Sawa, K. Mizuno, and Y. Kariya, Recent surface faulting events along the northern part of the Itoigawa-Shizuoka Tectonic Line—1ral Japan—, Zisin, 50 suppl., 35–51, 1998 (in Japanese with English abstract).

    Google Scholar 

  • Sagiya, T., Yet another fault model for the 1918 Omachi earthquake— implications for Itoigawa-Shizuoka Tectonic Line Fault Zone—, Zisin, 2002 (submitted).

  • Sagiya, T. and T. Tada, Crustal deformation and tectonics of the eastern margin of Japan Sea, Earth Monthly, 20, 515–521, 1998 (in Japanese).

    Google Scholar 

  • Sagiya, T., S. Miyazaki, and T. Tada, Continuous GPS array and present-day crustal deformation of Japan, PAGEOPH, 157, 2303–2322, 2000.

    Google Scholar 

  • Shimazaki, K. and Y. Zhao, Dislocation model for strain accumulation in a plate collision zone, Earth Planets Space, 52, 1091–1094, 2000.

    Article  Google Scholar 

  • Tada, T. and M. Hashimoto, Horizontal crustal deformation in the northern and central Fossa Magna regions and its tectonic significance, Chigaku Zasshi, 99, 92–97, 1990 (in Japanese with English abstract).

    Google Scholar 

  • Tsukuhara, H. and Y. Kobayashi, Crustal stress in the central and western parts of Honshu, Japan, Zisin, 44, 221–231, 1991 (in Japanese with English abstract).

    Google Scholar 

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Authors and Affiliations

  1. Geographical Survey Institute, 1 Kitasato, Tsukuba, Ibaraki, 305-0811, Japan

    Takeshi Sagiya, Takuya Nishimura & Takashi Tada

  2. Earthquake Research Institute, University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-0032, Japan

    Yoshihisa Iio

Authors
  1. Takeshi Sagiya
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  2. Takuya Nishimura
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  3. Yoshihisa Iio
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  4. Takashi Tada
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Correspondence to Takeshi Sagiya.

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Sagiya, T., Nishimura, T., Iio, Y. et al. Crustal deformation around the northern and central Itoigawa-Shizuoka Tectonic Line. Earth Planet Sp 54, 1059–1063 (2002). https://doi.org/10.1186/BF03353302

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  • DOI: https://doi.org/10.1186/BF03353302

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