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Volume 56 Supplement 12

Special Issue: Slip and Flow Processes in and below the Seismogenic Region (2)

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Heterogeneous crustal deformation along the central-northern Itoigawa-Shizuoka Tectonic Line Fault system, Central Japan

Earth, Planets and Space volume 56, pages 1247–1252 (2004)Cite this article

Abstract

We investigated the crustal deformation around the northern Itoigawa-Shizuoka Tectonic Line Fault Zone by continuous observation with a dense GPS array. The observation revealed concentrated deformation around the East Matsumoto-Basin Fault while the more active Gofukuji Fault has smaller strain rate. By examining the physical meanings of geodetic strain rate and the geological slip rate data, we estimate a larger seismic potential around the Gofukuji Fault. The deep slip model proposed for the strain concentration around the Omachi area was not validated. Inelastic deformation may play an important role as a cause of strain concentration.

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Authors and Affiliations

  1. Graduate School of Environmental Studies, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8602, Japan

    Takeshi Sagiya

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

    Takuya Nishimura

  3. Disaster Prevention Research Institute, Kyoto University, Gokasho, Uji, 611-0011, 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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Correspondence to Takeshi Sagiya.

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Sagiya, T., Nishimura, T. & Iio, Y. Heterogeneous crustal deformation along the central-northern Itoigawa-Shizuoka Tectonic Line Fault system, Central Japan. Earth Planet Sp 56, 1247–1252 (2004). https://doi.org/10.1186/BF03353347

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  • DOI: https://doi.org/10.1186/BF03353347

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