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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


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.


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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).

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Key words

  • Noto Hanto Earthquake
  • coseismic deformation
  • GPS
  • InSAR
  • coastal terrace