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Volume 60 Supplement 2

Special Issue: Special Section for the 2007 Noto Hanto Earthquake (1)

Crustal deformation associated with the Noto Hanto Earthquake in 2007 in Japan

Earth, Planets and Space volume 60, pages 95–98 (2008)Cite this article

Abstract

The Global Positioning System (GPS) network in Japan detected coseismic deformation from the 2007 Noto Hanto earthquake (Mw = 6.9). The result indicates a 21-cm southwestward displacement and a 7-cm upheaval at the GPS site near the epicenter. Synthetic Aperture Interferometry (InSAR) shows an approximately 50-cm movement toward the “Daichi” satellite, in ascending orbit, near the epicenter. The estimated fault slip distribution based on GPS and InSAR results shows a large slip area ranging up to 2 m near and northeast of the hypocenter. The slip area beneath the Sea of Japan southwest of the hypocenter also shows large slippage of around 2 m. Aftershocks are distributed in the asperity area and its vicinity, demonstrating that the asperity hypothesis clearly does not hold completely for this earthquake. Computed vertical displacements using the model are consistent with the geomorphological evidence of long-term uplift.

References

  • Aoi, S. et al., Ground motion and rupture process of the 2007 Noto Hanto earthquake inferred from strong motion data of K-NET and KiK-net, Spring meeting of Japan Geoscience Union, Z255-P006, 2007.

    Google Scholar 

  • Disaster prevention research institute, Post seismic deformation after the 2007 Noto peninsula earthquake, Rep. Coord. Commit. Equake. Predict, 2007 (in press).

  • Fukushima, Y., et al., Crustal deformation analysis using SAR interfer-ometry on the 2007 Noto Hanto earthquake, Spring meeting of Japan Geoscience Union, Z255-P019, 2007.

    Google Scholar 

  • GSI, Strain rate change in Japan detected by GPS network of the Geographical Survey Insitute of Japan, Rep. Coord. Commit. Earthq. Predict, 2007a (in press).

  • GSI, Development of coastal terraces in the Noto Hanto earthquake area, Rep. Coord. Commit. Equake. Predict, 2007b (in press).

  • Hatanaka, Y. et al., Improvement of the analysis strategy of GEONET, Bull. Geograph. Surv, Inst., 49, 11–37, 2003.

    Google Scholar 

  • Horikawa, H, Source process of the 2007 Noto-Hanto earthquake (M6.9), Spring meeting of Japan Geoscience Union, Z255-P008, 2007.

    Google Scholar 

  • JMA, Source mechanism of the Noto Hanto earthquake, Rep. Coord. Commit. Earthq. Predict, 2007 (in press).

  • Kato, N., Expansion of aftershock areas caused by propagating post-seismic sliding, Geophys. J. Int., 168(2), 797–808, 2007.

    Article  Google Scholar 

  • Ozawa, S., Geodetic inversion for the fault model of the 1994 Shikotan earthquake, Geophys. Res. Lett., 23, 2009–2012, 1996.

    Article  Google Scholar 

  • Ozawa, S. et al., Time-dependent inversion study of the slow thrust event in the Nankai trough subduction zone, southwestern Japan, J. Geophys. Res., 106, 787–802, 2001.

    Article  Google Scholar 

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

    Article  Google Scholar 

  • Yagi, Y., Co-seismic slip, post-seisimic slip, and aftershocks associated with two large earthquakes in 1996 in Hyuga-nada, Japan, Earth Planets Space, 53, 793–803, 2001.

    Article  Google Scholar 

  • Yamanaka, Y. et al., Source process of the 2007 Noto Earthquake and simultaneous observation of the strong and broadband seismographs, Spring meeting of Japan Geoscience Union, Z255-P013, 2007.

    Google Scholar 

Download references

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Authors and Affiliations

  1. Geographical Survey Institute of Japan, Tsukuba, Japan

    Shinzaburo Ozawa, Hiroshi Yarai, Mikio Tobita, Hiroshi Une & Takuya Nishimura

Authors
  1. Shinzaburo Ozawa
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  2. Hiroshi Yarai
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  3. Mikio Tobita
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  4. Hiroshi Une
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  5. Takuya Nishimura
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Correspondence to Shinzaburo Ozawa.

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Ozawa, S., Yarai, H., Tobita, M. et al. Crustal deformation associated with the Noto Hanto Earthquake in 2007 in Japan. Earth Planet Sp 60, 95–98 (2008). https://doi.org/10.1186/BF03352767

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  • DOI: https://doi.org/10.1186/BF03352767

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