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Geodetic constraint on the slip distribution of the 2006 Central Kuril earthquake


We have investigated the slip distribution of the 15 November 2006 Central Kuril earthquake off Simushir Island using continuous GPS data. A dense GPS network on Hokkaido Island, northern Japan, and Sakhalin Island detected coseismic horizontal displacements of ~9 mm despite large epicentral distances of about 900–1200 km. Eastward displacements at the sites decrease to the south, and this spatial distribution feature constrains the slip on the three subfaults. Our data suggest that little slip has occurred in the southern and northern parts, but that a 6-m slip has occurred in the center of the focal region. This interpretation fits well with the detailed slip distribution inferred from teleseismic waveform inversions. The total seismic moment, 2.8 × 1021 N m, is approximately the value indicated using by the Global CMT solution. Our result implies that there remains a seismic gap between this event and the 1952 great Kamchatkan earthquake that is large enough for an M > 8 earthquake.


  1. Banerjee, F., F. Pollitz, and R. Burgmann, The size and duration of the Sumatra-Andaman earthquake from far-field static offsets, Science, 308, 1769–1772, 2005.

  2. Beutler, G., M. Rothacher, S. Schaer, T. A. Springer, J. Kouba, and R. E. Neilan, The International GPS Service (IGS): An Interdisciplinary Service in Support of Earth Sciences, Adv. Space Res., 23, 631–635, 1999.

  3. Bilek, S. and T. Lay, Rigidity variations with depth along interplate megathrust faults in subduction zone, Nature, 400, 443–446, 1999.

  4. DeMets, C., Oblique convergence and deformation along the Kuril and Japan trenches, J. Geophys. Res., 97, 17615–17625, 1992.

  5. DeMets, C., R. Gordon, F. Argus, and S. Stein, Effect of recent revisions to the geomagnetic reversal time scale on estimates of current plate motions, Geophys. Res. Lett., 21, 2191–2194, 1994.

  6. Fedotov, S. A., Regularities of distribution of large earthquakes of Kamchatka, Kuril Islands and North-Eastern Japan, Trans. Inst. Phys. Earth Zemli Akad. Nauk, 36, 68–93, 1965.

  7. Geller, R. J. and H. Kanamori, Magnitude of great shallow earthquakes from 1904 to 1952, Bull Seism. Soc. Am., 67, 587–598, 1977.

  8. Hartzell, S. H. and T. H. Heaton, Rupture history of the 1984 Morgan Hill, California, earthquake from the inversion of strong motion records, Bull. Seismol. Soc. Am., 76, 649–674, 1986.

  9. Hashimoto, M., N. Choosakul, M. Hashizume, S. Takemoto, H. Takiguchi, Y. Fukuda, and K. Fujimori, Crustal deformation associated with the great Sumatra-Andaman earthquake deduced from continuous GPS observation, Earth Planets Space, 58, 127–139, 2006.

  10. Hugentobler, U., S. Schaer, and P. Fridez, Bernese GPS Software Version 4.2, University of Bern, 515pp, 2001.

  11. Kimura, G., Oblique subduction and collision: Forearc tectonics of the Kuril arc, Geology, 14, 404–407, 1986.

  12. Lobkovsky, L. I., B. V. Baranov, R. G. Kulinich, and B. Y. Karp, The central Kuril Gap: Structure and seismic potential, Doklady Earth Sci., 409, 787–790, 2006.

  13. Okada, Y., Internal deformation due to shear and tensile faults in a halfspace, Bull. Seismol. Soc. Am., 82, 1018–1040, 1992.

  14. Sella, G. F., T. H. Dixon, and A. Mao, REVEL: A model for recent plate velocities from space geodesy, J. Geophys. Res., 107, doi:10. 1029/2000JB000033, 2002.

  15. Song, T. A. and M. Simons, Large trench-parallel gravity variations predict seismogenic behavior in subduction zone, Science, 301, 630–633, 2003.

  16. Yamanaka, Y. and M. Kikuchi, Asperity map along the subduction zone in northeastern Japan inferred from regional seismic data, J. Geophys. Res., 109, B07307, doi:10.1029/2003JB002683, 2004.

  17. Wessel, P. and W. H. F. Smith, New version of the generic mapping tools released, Eos Trans. AGU, 76, 329–336, 1995.

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Correspondence to Hiroaki Takahashi.

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Takahashi, H., Kasahara, M. Geodetic constraint on the slip distribution of the 2006 Central Kuril earthquake. Earth Planet Sp 59, 1095–1098 (2007).

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Key words

  • 2006 Central Kuril earthquake
  • GPS
  • slip distribution
  • seismic gap