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Volume 61 Supplement 4

Special Issue: Coupling Processes in the Equatorial Atmosphere (CPEA)

Coseismic displacement due to the 2008 Iwate-Miyagi Nairiku earthquake detected by ALOS/PALSAR: preliminary results


Applying interferometric SAR (InSAR) analysis to the 2008 Iwate-Miyagi Nairiku earthquake, we detected notable ground displacements of several tens of centimeters to about 1.2 m that extend further south of the epicentral area. We explained the InSAR data by constructing a fault model consisting of four WNW dipping and one ESE dipping reverse faults. The residuals between observed and modeled deformation are less than 6 cm in most of the area, which is comparable to the errors caused by atmospheric effect. To fill the lack of InSAR data in the hypocentral area, we applied a pixel matching technique to the intensity images, which shows a shortening in range offsets by as much as 2 m along a narrow zone stretching along the eastern foot of Mt. Kurikoma, indicating a localized uplift. We also found remarkable contrasts in the range offsets around the low coherence area equivalent to a very large displacement gradient to the WNW of the hypocentral area as well as ESE. We conclude that the main faulting occurred on the WNW dipping reverse faults, but that the overall geometry of the fault system is quite complex including at least one conjugate faulting, as also supported by the hypocentral distribution of aftershocks.


  • Aki, K. and P. G. Richards, Quantitative seismology, Freeman, San Francisco, 1980.

    Google Scholar 

  • Aoki, Y., M. Furuya, and T. Kato, Coseismic deformation due to the 2007 Chuetsu-oki earthquake (Mw = 6.8), Earth Planets Space, 60, 1075–1080, 2008.

    Article  Google Scholar 

  • Cavalié, O., C. Lasserre, M. P. Doin, G. Peltzer, J. Sun, X. Xu, and Z. K. Shen, Measurement of interseismic strain across the Haiyuan fault (Gansu, China), by InSAR, Earth Planet. Sci. Lett., 275, 246–257, 2008.

    Article  Google Scholar 

  • Kato, A., S. Sakai, N. Hirata, E. Kurashimo, T. Iidaka, T. Iwasaki, and T. Kanazawa, Imaging the seismic structure and stress field in the source region of the 2004 mid-Niigata earthquake: Structural zones of weakness and seismogenic stress concentration by ductile flow, J. Geophys. Res., 111, B08308, doi:10.1029/2005JB004016, 2006.

    Google Scholar 

  • Kato, A., S. Sakai, E. Kurashimo, T. Igarashi, T. Iidaka, N. Hirata, T. Iwasaki, T. Kanazawa, and Group for the aftershock observations of the 2007 Niigataken Chuetsu-oki Earthquake, Imaging heterogeneous velocity structures and complex aftershock distributions in the source region of the 2007 Niigataken Chuetsu-oki Earthquake by a dense seismic observation, Earth Planets Space, 60, 1111–1116, 2008.

    Article  Google Scholar 

  • Michel, R., J. P. Avouac, and J. Taboury, Measuring ground displacements from SAR amplitude images: application to the Landers earthquake, Geophys. Res. Lett., 26, 875–878, 1

    Article  Google Scholar 

  • Nakata, T. and T. Imaizumi (ed.), Digital active fault map of Japan, University of Tokyo Press, Tokyo, 2002.

    Google Scholar 

  • Okada, T., T. Yaginuma, N. Umino, T. Matsuzawa, A. Hasegawa, H. Zhang, and C. H. Thurber, Detailed imaging of the fault planes of the 2004 Niigata-Chuetsu, central Japan, earthquake sequenced by double-difference tomography, Earth Planet. Sci. Lett., 244, 32–43, 2

    Article  Google Scholar 

  • Okada, T., N. Umino, A. Hasegawa, and Group for the aftershock observations of the Iwate-Miyagi Nairiku Earthquake in 2008,, SSJ Newsletter, 20(4), 8–10, 2008 (in Japanese).

    Google Scholar 

  • Okada, Y., Internal deformation due to shear and tensile faults in a half-space, Bull. Seismol. Soc. Am., 82, 1018–1040, 1992.

    Google Scholar 

  • Pathier, E., E. J. Fielding, T. J. Wright, R. Walker, B. E. Parsons, and S. Hensley, Displacement field and slip distribution of the 2005 Kashmir earthquake from SAR imagery, Geophys. Res. Lett., 33, L20310, doi:10.1029/2006GL027193, 2006.

    Article  Google Scholar 

  • Takada, Y. and M. Furuya, Aseismic slip during the 1996 earthquake swarm in and around the Onikobe geothermal area, NE Japan, Earth Planet. Sci. Lett., 2009 (in revision).

    Google Scholar 

  • Tobita, M., M. Murakami, H. Nakagawa, H. Yarai, S. Fujiwara, and P. A. Rosen, 3-D surface deformation of the 2000 Usu eruption measured by matching of SAR images, Geophys. Res. Lett., 28, 4291–4294, 2001.

    Article  Google Scholar 

  • Umino, N., T. Matsuzawa, S. Hori, A. Nakamura, A. Yamamoto, A. Hasegawa, and T. Yoshida, 1996 Onikobe earthquakes and their relation to crustal structure, J. Seismol. Soc. Jpn., 51, 253–264, 1998 (in Japanese with English abstract).

    Google Scholar 

  • Wegmüler, U. and C. L. Werner, Gamma SAR processor and interferometry software, in Proc. the 3rd ERS Symposium, ESA, SP-414, 1686–1692, 1997.

    Google Scholar 

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Correspondence to Youichiro Takada.

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Takada, Y., Kobayashi, T., Furuya, M. et al. Coseismic displacement due to the 2008 Iwate-Miyagi Nairiku earthquake detected by ALOS/PALSAR: preliminary results. Earth Planet Sp 61, e9–e12 (2009).

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