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Application of the stress evolutionary model along the Xiaojiang fault zone in Yunnan Province, Southeast China

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EN
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EN
The Xiaojiang fault zone constitutes part of the major Xianshuihe¨CXiaojiang left lateral structure that bounds the rhombic-shaped block of Yunnan¨CSichuan to the east. Long strike slip fault zones that have repeatedly accommodated intense seismic activity, constitute a basic feature of southeast China. Known historical earthquakes to have struck the study area are the 1713 Xundian of M6.8, 1725 Wanshou mountain of M6.8, the 1733 Dongchuan of M7.8, and the strongest one, the 1833 Songming of M8.0. Although instrumental record did not report events of this magnitude class, the 18th century clustering as well as the 19th century large event prompted the investigation of stress transfer along this fault zone. Coulomb stress changes were calculated assuming that earthquakes can be modeled as static dislocations in an elastic half-space, and taking into account both the coseismic slip in strong (M ˇÝ 6.8) earthquakes and the slow tectonic stress buildup along the major fault segments. Geological and geodetic data are used to infer the geometry of these faults and long term slip rates on them, as well as for the fault segments that slipped. Evidence is presented that the strong historical events as well as the ones of smaller magnitude that occurred during the instrumental era, are located in areas where the static stress was enhanced. By extending the calculations up to present, possible sites for future strong events are identified.
Czasopismo
Rocznik
Strony
577--593
Opis fizyczny
Twórcy
autor
autor
  • Department of Geophysics, Aristotle University of Thessaloniki, Thessaloniki, Greece, paradis@gmail.com
Bibliografia
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  • Chen, Z., B.C. Burchfiel, Y. Liu, R.W. King, L.H. Royden, W. Tang, E. Wang, J. Zhao and X. Zhang, 2000, Global positioning system measurements from eastern Tibet and their implications for Indian-Eurasia intercontinental deformation, J. Geophys. Res. 105, 16,215-16,227.
  • Deng, J., and L. Sykes, 1997, Evolution of the stress field in Southern California and triggering of moderate size earthquakes: A 200-year perspective, J. Geophys. Res. 102, 9859-9886.
  • Erikson, L., 1986, User's manual for DIS3D: A three-dimensional dislocation program with applications to faulting in the Earth, Masters Thesis, Stanford Univ., Stanford, CA, 167 pp.
  • Harris, R., and R. Simpson, 1993, In the shadow of 1857: An evaluation of the static stress changes generated by the M8 Ft. Tejon, California, earthquake, EOS, Trans. Am. Geophys. Un. 74, 427.
  • Harris, R., and R. Simpson, 1996, In the shadow of 1857: The effect of the great Ft Tejon earthquake on subsequent earthquakes in Southern California, Geophys. Res. Lett. 23, 229-232.
  • Harris, R., and R. Simpson, 1998, Suppression of large earthquakes by stress shadows: a comparison of Coulomb and rate-and-state failure, J. Geophys. Res. 103, 24,439-24,452.
  • He, H., 1992, The discussion on the seismogenic structures in the wedge area of east Yunnan, Seismology and Geology 14, 55-66 (in Chinese).
  • King, G.C.P., and M. Cocco, 2001, Fault interaction by elastic stress changes: New clues from earthquake sequences, Adv. Geophys. 44, 1-38.
  • King, G.C.P., R.S. Stein and J. Lin, 1994a, Static stress changes and the triggering of earthquakes, Bull. Seism. Soc. Am. 84, 935-953.
  • King, G., D. Oppenheimer and F. Amelung, 1994b, Block versus continuum deformation in the western United States, Earth Planet. Sc. Lett. 128, 55-64.
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  • Okada, Y., 1992, Internal deformation due to shear and tensile faults in a half-space, Bull. Seismol. Soc. Am. 82, 1018-1040.
  • Papadimitriou, E.E., Xueze Wen, V.G. Karakostas and Xueshen Jin, 2004, Earthquake triggering along the Xianshuihe fault zone of western Sichuan, China, Pure Appl. Geophys. 161, 1683-1707.
  • Papazachos, B.C., E.M. Scordilis, D.G. Panagiotopoulos, C.B. Papazachos and G.F. Karakaisis, 2004, Global relations between seismic fault parameters and moment magnitude of Earthquakes, Bull. Geol. Soc. Greece XXXVI, 1482-1489.
  • Peng, L., 1993, Xianshuihe-Xiaojiang Fault Belt, Seism. Press Publ., Beijing 36, 144-145.
  • Reasenberg, A., and R. Simpson, 1992, Response of regional seismicity to the static stress change produced by the Loma Prieta earthquake, Science 255, 1687-1690.
  • Shen, J., Y. Wang and F. Song, 2003, Characteristics of the active Xiaojiang fault zone in Yunnan, China: a slip boundary for the southeastward escaping Sichuan-Yunnan Block of the Tibetan Plateau, J. Asian Earth Sci. 21, 1085-1096.
  • Shen, Z.-K., J. Lü, M. Wang and R. Bürgmann, 2005, Contemporary crustal deformation around the southeast borderland of the Tibetan Plateau, J. Geophys. Res. 110, doi:10.1029/2004JB003421.
  • Song Fangming, Wang Yipeng, Yu Weixian, Cao Zhongquan, Shen Xuhui and Shen Jun, 1998, Xiaojiang Active Fault Zone, Seism. Press Publ., Beijing (in Chinese).
  • Stein, R., 1999, The role of stress transfer in earthquake occurrence, Nature 402, 605-609.
  • Stein, R.S., A.A. Barka and H. Dieterich, 1994, Progressive failure on the North Anatolian fault since 1939 by earthquake stress triggering, Geophys. J. Int. 128, 594-604.
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  • Toda, S., R. Stein, A. Reasenberg, H. Dieterich and A. Yoshida, 1998, Stress transferred by the 1995 Mw = 6.9 Kobe, Japan, shock: Effect on aftershocks and future earthquake probabilities, J. Geophys. Res. 103, 24,543-24,565.
  • Wang, E., B.C. Burchfiel, L.H. Royden, L. Chen, J. Chen and W. Lin, 1998, Late Cenozoic Xianshuihe-Xiaojiang, Red River, and Dali fault systems of southwestern Sichuan and central Yunnan, China, GSA Special Paper 327, 108 pp.
  • Wells, D.L., and K.J. Coppersmith, 1994, New empirical relationships among magnitude, rupture length, rupture width, rupture area, and surface displacement, Bull. Seism. Soc. Am. 84, 974-1002.
  • Wen, X., G. Yi, P. Zhang and X. Xu, 2002, Time dependent seismic hazard assessment for the eastern-boundary fault zone of Sichuan-Yunnan Block, China. In: T. Kato and Z. Sihua (eds.), Proc. of the 1st China-Japan Workshop on Earthquake Disaster Mitigation, Beijing, 18-21 Sep, 141-154.
  • Wessel, P., and W.H.F. Smith, 1998, New, improved version of the Generic Mapping Tools Released, EOS Trans. AGU 79, 579.
  • Zhang, S., 1988a, The study of the rupture zone of 1833 Songming M = 8 earthquake, Study on the earthquake faults in China, Xinjiang People's Press, Urumqi, China, 330 pp. (in Chinese).
  • Zhang, S., 1988b, The study of the rupture zone of 1733 Dongchuan M = 7.8 earthquake, Study on the earthquake faults in China, Xinjiang People's Press, Urumqi, China, 330 pp. (in Chinese).
  • Zhu, C., 1982, Determining the slipping rate in Holocene and estimation of the earthquake risk of Xiaojiang fault zone, Paleoearthquakes and Quaternary, Shanxi People's Press, 245 pp. (in Chinese).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BSL7-0021-0060
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