Seismicity related to heterogeneous structure along the western Nankai trough off Shikoku Island

Geophysical Research Letters

Volumn 33, Issue 23, 2006, Pages

  Obana, Koichiro ^a   Kodaira, Shuichi ^a   Kaneda, Yoshiyuki ^a  

^a JAPAN AGENCY FOR MARINE EARTH SCIENCE AND TECHNOLOGY   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

EARTHQUAKES; SEISMIC WAVES; SEISMOGRAPHS; SEISMOLOGY; TECTONICS; TOPOGRAPHY;

COSEISMIC SLIP; CRUSTAL STRUCTURE; SEISMICITY;

STRUCTURAL GEOLOGY;

COSEISMIC PROCESS; CRUSTAL STRUCTURE; EARTHQUAKE MAGNITUDE; HETEROGENEOUS MEDIUM; MICROEARTHQUAKE; NANKAI EARTHQUAKE 1946; OCEAN BOTTOM SEISMOMETER; OCEANIC CRUST; SEISMICITY; SLIP; TECTONIC PLATE; TOPOGRAPHY; UPPER MANTLE;

ASIA; EURASIA; FAR EAST; JAPAN; NANKAI TROUGH; PACIFIC OCEAN; SHIKOKU;

EID: 34548646377     PISSN: 00948276     EISSN: None     Source Type: Journal    
DOI: 10.1029/2006GL028179     Document Type: Article

References (20)

1. Ando, M. (1975), Source mechanisms and tectonic significance of historical earthquakes along the Nankai Trough, Japan, Tectonophysics, 27, 119-140.
2. Baba, T., and P. R. Cummins (2005), Contiguous rupture areas of two Nankai Trough earthquakes revealed by high-resolution tsunami waveform inversion, Geophys. Res. Lett., 32, L08305, doi:10.1029/ 2004GL022320.
3. Baba, T., Y. Tanioka, P. R. Cumminsa, and K. Uhira (2002), The slip distribution of the 1946 Nankai earthquake estimated from tsunami inversion using a new plate model, Phys. Earth Planet. Inter., 132, 59-73.
4. Hardebeck, J. L., and P. M. Shearer (2002), A new method for determining first-motion focal mechanisms, Bull. Seismol. Soc. Am., 92, 2267-2276.
5. Hori, T. (2006), Mechanisms of separation of rupture area and variation in time interval and size of great earthquakes along the Nankai Trough, southwest Japan, J. Earth Simulator, 5, 8-19.
6. Ikami, A., K. Ito, Y. Sasaki, and S. Asano (1982), Crustal structure in the profile across Shikoku, Japan as derived from the off Sakaide explosions (in Japanese with English abstract), J. Seismol. Soc. Jpn., 35, 367-376.
7. Kodaira, S., N. Takahashi, J. Park, K. Mochizuki, M. Shinohara, and S. Kimura (2000), Western Nankai Trough seismogenic zone: Results from a wide-angle ocean bottom seismic survey, J. Geophys. Res., 105(B3), 5887-5906.
8. Kodaira, S., E. Kurashimo, J.-O. Park, N. Takahashi, A. Nakanishi, S. Miura, T. Iwasaki, N. Hirata, K. Ito, and Y. Kaneda (2002), Structural factors controlling the rupture process of a megathrust earthquake at the Nankai trough seismogenic zone, Geophys. J. Int., 149, 815-835.
9. Matsu'ura, M. (1991), Development of inversion theory in geophysics (in Japanese with English abstract), J. Seismol. Soc. Jpn., 44, 53-62.
10. Miyazaki, S., and K. Heki (2001), Crustal velocity field of southwest Japan: Subduction and arc-arc collision, J. Geophys. Res., 106(B3), 4305-4326.
11. Momma, H., N. Fujiwara, K. Kawaguchi, R. Iwase, S. Suzuki, Y. Kaiho, and H. Kinoshita (1997), Comprehensive seafloor monitoring system (in Japanese with English abstract), JAMSTEC J. Deep Sea Res., 13, 721-731.
12. Obana, K., S. Kodaira, Y. Kaneda, K. Mochizuki, M. Shinohara, and K. Suyehiro (2003), Microseismicity at the seaward updip limit of the western Nankai Trough seismogenic zone, J. Geophys. Res., 108(B10), 2459, doi:10.1029/2002JB002370.
13. Obana, K., S. Kodaira, and Y. Kaneda (2005), Seismicity in the incoming/ subducting Philippine Sea plate off the Kii Peninsula, central Nankai trough, J. Geophys. Res., 110, B11311, doi:10.1029/2004JB003487.
14. Okino, K., Y. Ohara, S. Kasuga, and Y. Kato (1999), The Philippine Sea: New survey results reveal the structure and the history of the marginal basins, Geophys. Res. Lett., 26(15), 2287-2290.
15. Park, J., T. Tsuru, N. Takahashi, T. Hori, S. Kodaira, A. Nakanishi, S. Miura, and Y. Kaneda (2002), A deep strong reflector in the Nankai accretionary wedge from multichannel seismic data: Implications for underplating and interseismic shear stress release, J. Geophys. Res., 107(B4), 2061, doi:10.1029/2001JB000262.
16. Takahashi, N., et al. (2002), Seismic structure of western end of the Nankai trough seismogenic zone, J. Geophys. Res., 107(B10), 2212, doi:10.1029/2000JB000121.
17. Takahashi, N., S. Kodaira, J.-O. Park, and J. Diebold (2003), Heterogeneous structure of western Nankai seismogenic zone deduced by multichannel reflection data and wide-angle seismic data, Tectonophysics, 364, 167-190.
18. Urabe, T., and S. Tsukada (1992), Win: A workstation program for processing waveform data from microearthquake networks (in Japanese), Programme Abstr. Seismol. Soc. Jpn., 2, 41.
19. Watanabe, H. (1971), Determination of earthquake magnitude at regional distance in and near Japan (in Japanese with English abstract), J. Seismol. Soc. Jpn., 24, 189-200.
20. Zelt, C. A., and P. J. Barton (1998), Three-dimensional seismic refraction tomography: A comparison of two methods applied to data from the Faeroe Basin, J. Geophys. Res., 103(B4), 7187-7210.