- Open Access
Co- and post-seismic slip associated with the 2005 Miyagi-oki earthquake (M7.2) as inferred from GPS data
Earth, Planets and Space volume 58, pages1567–1572(2006)
A large earthquake with M7.2 occurred on August 16, 2005 along the plate boundary off Miyagi Prefecture. Co- and post-seismic deformations associated with this event were investigated to reveal the causal interplate slips using continuous GPS data and geodetic inversion. The coseismic slip distribution shows good agreement with that estimated by seismic waveform inversions. The major slip area is limited to the southeastern part of the rupture area of the previous 1978 event. The post-seismic slip extended to the southwest of the co-seismic slip area. These distinctive features of both the co- and post-seismic slips might be caused by the existence of the locked plate interface, where seismogenic stress has not released yet, in the northern part of the 1978 rupture area.
Hasegawa, A., S. Horiuchi, and N. Umino, Seismic structure of the northeastern Japan convergent margin: A synthesis, J. Geophys. Res., 99, 22,295–22,311, 1994.
Hasegawa, A., N. Uchida, T. Igarashi, T. Matsuzawa, T. Okada, S. Miura, and Y. Suwa, Asperities and quasi-static slip on the subducting plate boundary east off Tohoku, NE Japan, SEIZE volume, Columbia Univ. Press., 2005 (in press).
Hatanaka, Y., T. Iizuka, M. Sawada, A. Yamagiwa, Y. Kikuta, J. M. Johnson, and C. Rocken, Improvement of the Analysis Strategy of GEONET, Bull. GSI, 49, 11–37, 2003.
Headquaters for Earthquake Research Promotion of Japan, Long-term evaluation of the Miyagi-Oki earthquakes, http://www.jishin.go.jp/main/index.html, 2003 (in Japanese).
Heki, K., S. Miyazaki, and H. Tsuji, Silent fault slip following an interplate thrust earthquake at the Japan Trench, Nature, 386, 595–597, 1997.
Hirose, H., K. Hirahara, F. Kimata, N. Fujii, and S. Miyazaki, A slow thrust slip event following the two 1996 Hyuganada earthquakes beneath the Bungo Channel, southwest Japan, Geophys. Res. Lett., 26, 3237–3240, 1999.
Japan Meteorological Agency, Seismic Activity in and around the Tohoku District (November 2005–April 2006), Rep. Coord. Comm. Earthq. Pred., 76, 83–93, 2006.
Matsuzawa, T., T. Igarashi, and A. Hasegawa, Characteristic small-earthquake sequence off Sanriku, northeastern Honshu, Japan, Geophys. Res. Lett., 29, 1543, doi:10.1029/2001GL014632, 2002.
Matsuzawa, T., N. Uchida, T. Igarashi, T. Okada, and A. Hasegawa, Repeating earthquakes and quashi-static slip on the plate boundary east off northern Honshu, Japan, Earth Planets Space, 56, 803–811, 2004.
Miura, S., K. Tachibana, K. Hashimoto, E. Murakami, T. Kono, K. Nida, T. Sato, and S. Hori, GPS observation for regional crustal deformation around the northeastern Japan arc, J. Geod. Soc. Japan, 39, 167–178, 1993.
Miura, S., Y. Suwa, T. Sato, K. Tachibana, and A. Hasegawa, Slip distribution of the 2003 northern Miyagi earthquake (M6.4) deduced from geodetic inversion, Earth Planets Space, 56, 95–101, 2004.
Miura, S., Y. Suwa, and A. Hasegawa, The 2003 M8.0 Tokachi-Oki earthquake? How much has the great event paid back slip debts?, Geophys. Res. Lett., 31, L05613, doi:10.1029/2003GL019021, 2004.
Miyazaki, S., T. Saito, M. Sasaki, Y. Hatanaka, and Y. Iimura, Expansion of GSI’s nationwide GPS array, Bull. Geogr. Surv. Inst., 43, 23–34, 1997.
Nagai, R., M. Kikuchi, and Y. Yamanaka, Comparative study on the source process of recurrent large earthquakes in Sanriku-oki region: the 1968 Tokachi-oki and the 1994 Sanrikuoki earthquakes, Zisin (J. Seismal. Soc. Japan), 54, 267–280, 2001 (in Japanese with English abstract).
Okada, T., T. Matsuzawa, and A. Hasegawa, Comparison of source areas of M4.8+/-0.1 repeating earthquakes off Kamaishi, NE Japan? Are asperities persistent features?, Earth Planet Sci. Lett., 213, 361–374, 2003.
Okada, T., T. Yaginuma, N. Umino, T. Kono, T. Matsuzawa, S. Kita, and A. Hasegawa, The 2005 M7.2 Miyagi-Oki earthquake, NE Japan: Possible rerupturing of one of asperities that caused the previous M7.4 earthquake, Geophys. Res. Lett., 32, L24302, doi:10.1029/2005GL024613, 2005.
Ozawa, S., H. Suito, and T. Imakiire, Coupling state change near Iwate, northeast Japan, after 2003, Program. Abstr. Seismal. Soc. Japan 2006 Fall Meet., P019, 2006 (in Japanese).
Seno, T., K. Shimazaki, P. Somerville, K. Sudo, and T. Eguchi, Rupture process of the Miyagi-Oki, Japan, earthquake of June 12, 1978, Phys. Earth Planet. Inter., 23, 39–61, 1980.
Suwa, Y., S. Miura, A. Hasegawa, T. Sato, and K. Tachibana, Interplate coupling beneath NE Japan inferred from three-dimensional displacement field, J. Geophys. Res., 111, B04402, doi:10.1029/2004JB003203, 2006.
Uchida, N., T. Matsuzawa, S. Hirahara, and A. Hasegawa, Small repeating earthquakes and interplate creep around the 2005 Miyagi-oki earthquake (M=7.2), Earth Planets Space, 58, this issue, 1577–1580, 2006.
Umino, N., T. Kono, T. Okada, J. Nakajima, T. Matsuzawa, N. Uchida, A. Hasegawa, Y. Tamura, and G. Aoki, Revisiting the three M~7 Miyagi-oki earthquakes in the 1930s: possible seismogenic slip on asperities that were re-ruptured during the 1978 M=7.4 Miyagi-oki earthquake, Earth Planets Space, 58, this issue, 1587–1592, 2006.
Wessel, P. and W. H. F. Smith, Free software helps map and display data, Abstr. EOS Tran. Am. Geophys. Union, 72, 445–446, 1991
Yabuki, T. and M. Matsu’ura, Geodetic data inversion using a Bayesian information criterion for spatial distribution of fault slip, Geophys. J. Int., 109, 363–375, 1992.
Yagi, Y., M. Kikuchi, and T. Nishimura, Co-seismic slip, post-seismic slip, and largest aftershock associated with the 1994 Sanriku-haruka-oki, Japan, earthquake, Geophys. Res. Lett., 30, doi:10.1029/ 2003GL018189, 2003.
Yaginuma, T., T. Okada, Y. Yagi, T. Matsuzawa, N. Umino, and A. Hasegawa, Coseismic slip distribution of the 2005 off Miyagi earthquake (M7.2) estimated by inversion of teleseismic and regional seismograms, Earth Planets Space, 58, this issue, 1549–1554, 2006.
Yamanaka, Y. and M. Kikuchi, Source process of the recurrent Tokachi-oki earthquake on September 26, 2003, inferred from teleseismic body waves, Earth Planets Space, 55, e21–e24, 2003.
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.
Yui, S., S. Miura, A. Hasegawa, and Y. Yagi, Space-time Evolution of Inter-plate Slip beneath Hokkaido, Japan before and after the 2003 Tokachi-oki Earthquake (M8.0) Inferred from GPS, Eos Trans. AGU, 86(52), Fall Meet. Suppl., Abstract G51B-0823, 2005.
Zumberge, J. F., M. B. Heflin, D. C. Jefferson, M. M. Watkins, and F. H. Webb, Precise point positioning for the efficient and robust analysis of GPS data from large networks, J. Geophys. Res., 102, 5,005–5,017, 1997.
About this article
Cite this article
Miura, S., Iinuma, T., Yui, S. et al. Co- and post-seismic slip associated with the 2005 Miyagi-oki earthquake (M7.2) as inferred from GPS data. Earth Planet Sp 58, 1567–1572 (2006). https://doi.org/10.1186/BF03352662
- subduction zone
- interplate earthquake
- coseismic slip
- after slip