Abstract
Based on the data of earthquake centroid moment tensor (CMT) solution, P-wave first motion focal mechanism solution and deep hole breakouts, a present-day tectonic stress map for eastern Asia region is compiled. The original stress data are smoothed for every 200 km × 200 km area by taking the average of all stress indicators within each sub-region. The stress map shows the spatial distribution of the orientation of principal stress axes and the stress regimes. An earthquake focal mechanism map for the eastern Asia is also given. The maps of orientation of principal stress axes show that, apart from the strong influence of the collision between the Indian Ocean plate and Eurasian plate, the present-day tectonic stress in eastern Asia is significantly affected by the back-arc extension of the subduction zones. The joint effect of the continental collision at the Himalaya arc and back-arc extension in the Burma arc region may be responsible for the remarkable rotation of the principal stress orientations in southeastern part of the Tibet plateau. The joint action of the collision between the Philippine Sea plate and Eurasian plate at Taiwan Island and the back-arc extension of the Ryukyu arc affect the stress field in eastern part of China. There are no strong earthquakes in the present day in the vast back-arc region of the Java trench subduction zone. The back-arc extension there may create a condition favorable to the southward flow of the lithosphere material in southeastern Asia. In the inner part of the Tibet plateau region, roughly demarcated by the Kunlun mountain, the northern and northeastern part is a broad intracontinental compressive zone, while the southern and southwestern part is generally in a normal-faulting stress state.
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References
GAO A-jia, XU Zhong-huai, ZHANG Dong-ning. 1993. Contemporary tectonic stress in Karamay oil field [J].Acta Seismologica Sinica,15(Suppl.): 598–606 (in Chinese).
GAO Jian-li, DING Jian-min, LIANG Guo-ping,et al. 1992. In-situ stress state in the China’s sea and adjacent areas [J].Acta Seismologica Sinica,5(3): 523–537.
GUO Qi-liang, DING Jian-min, LIANG Guo-ping,et al. 1991. Orientation of crustal stress determined from borehole breakouts in Songliao basin, northeastern China [A]. In: Institute of Crustal Dynamics, SSB ed.Collection in Crustal Structure and Stress (5) [C]. Beijing: Seismological Press, 142–151 (in Chinese).
Hansen K M, Mount V S. 1990. Smoothing and extrapolation of crustal stress orientation measurements [J].J Geophys Res,95(B2): 1 155–1 165.
LI Fang-quan. 1992. Comparison of the results obtained from different techniques such as overcoring, hydrofracturing, breakouts and focal mechanism solutions [J].Acta Seismologica Sinica,5(4): 709–717.
LI Fang-quan, Kanagawa T, ZHANG Bo-chong,et al. 1992. In-site stress measurement at 800 m depth at Three Gorge site in China [A]. In: Institute of Crustal Dynamics, SSB ed.Sino-Japanese Joint Research on Comparing AE and Hydraulic Fracturing Methods [C]. Beijing: Seismological Press, 59 (in Chinese).
Petit C, Deverchere J, Houdry F,et al. 1996. Present-day stress field changes along the Baikal rift and tectonic implications [J].Tectonics,15(6): 1 171–1 191.
WANG Su-yun, GAO A-jia, XU Zhong-huai. 1993. Characteristics of focal mechanisms of the earthquakes in China and its vicinity [A]. In: Department of Earthquake Hazard Prevention, CSB ed.A Collection of the papers on Seismic Zoning in China [C]. Beijing: Seismological Press, 10–26 (in Chinese).
XIE Fu-ren, LIANG Hai-qing, ZHU Jing-zhong,et al. 1991. Mean stress field of the Chaoshan-Dongshan region, Southeast China, determined from fault striation analysis [A]. In: Institute of Crustal Dynamics, SSB ed.Collection in Crustal Structure and Stress (5) [C]. Beijing: Seismological Press, 152–158 (in Chinese).
XIE Fu-ren, ZHU Jing-zhong, LIANG Hai-qing,et al. 1993. Basic characteristics of recent tectonic stress field in southwest China [J].Acta Seismologica Sinica,6(4): 843–855.
XIE Fu-ren, ZHANG Shi-min, DOU Su-qin,et al. 1999. Evolution characteristics of Quaternary tectonic stress field in the north and east margin of Qinghai-Xizang (Tibet) plateau [J].Acta Seismologica Sinica,12(5): 550–561.
WU Jia-yi, YU Shu-jun, HE Shu-yun. 1979. The correlation of earthquake occurrence between northeastern China and Japan [J].Acta Geophysica Sinica,22(4): 415–438 (in Chinese with English abstract).
Xu Zhon-huai, WANG Su-yun, HUANG Yu-rui,et al. 1992. Tectonic stress field of China from a large number of small earthquakes [J].J Gegophys Res,97(B8): 11 867–11 877.
XU Zhong-huai, XU Guo-qing, WU Shao-wu. 1999. Present-day tectonic stress in the East China Sea region and its possible origin [J].Acta Seismologica Sinica,12(5): 542–549.
ZHAI Qing-shan, LI Fang-quan, LIU Peng,et al. 1989. Hydrofracturing stress measurement in a borehole 800 m deep in Shiziqiao, Jianchuan County, Yunnan Province [A]. In: Institute of Crustal Dynamics, SSB ed.Collection in Crustal Structure and Stress (3) [C]. Beijing: Seismological Press, 100–107 (in Chinese).
Zoback M L. 1992. First- and second-order pattern of stress in the lithosphere: the World Stress Project [J].J Geophys Res,97(B8): 11 703–11 728.
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Foundation item: Climbing plan project 95-S-05-01-03 from the State Department of Science and Technology, China.
Contribution No. 01FE2007, Institute of Geophysics, China Seismological Bureau.
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Xu, Zh. A present-day tectonic stress map for eastern Asia region. Acta Seimol. Sin. 14, 524–533 (2001). https://doi.org/10.1007/BF02718059
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DOI: https://doi.org/10.1007/BF02718059