| Distribution of apparent stress in western China |
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| 作者姓名： | 吴忠良 黄静 林碧苍 |
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| 作者单位： | WU Zhong-liang HUANG Jing LIN Bi-cang Institute of Geophysics，China Seismological Bureau，Beijing 100081，China |
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| 基金项目： | The MOST under contract number G1998040705 95-S-05 and 2001BA601B02. |
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| 摘 要： | Introduction Seismological data (mainly focal mechanism data) has shown to be capable of providing important constraint on the geodynamical models of the eastern Asia in the perspective of stress orientation, stress state (compressional, tensional, or shear), and the source of stress (HUAN, et al, 1979; Xu, et al, 1992). One of the outstanding problems left is the stress level. In principle, within the framework of elasticity, it is impossible to obtain the information of the absolute stress…
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| 收稿时间： | 10 January 2002 |
| 修稿时间： | 8 April 2002 |
Distribution of apparent stress in western China |
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| Wu Zhong-liang , Huang Jing and Lin Bi-cang.Distribution of apparent stress in western China[J].Acta Seismologica Sinica(English Edition),2002,15(3):309-317. |
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| Authors: | Wu Zhong-liang Huang Jing and Lin Bi-cang |
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| Institution: | Institute of Geophysics, China Seismological Bureau, Beijing 100081, China |
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| Abstract: | Distribution of apparent stress in Chinese mainland and its surrounding regions was presented using the NEIC broadband radiated energy catalogue and the Harvard CMT catalogue from January 1987 to December 1998. Due to the limitation on the number of samples, reliable results are only for the western China. It is observed that the average apparent stress in Chinese mainland is 0.8 MPa; The maximum apparent stress to the east of the Tibetan plateau is 2.6 MPa; And the average apparent stress in the north-south seismic belt is more than one time higher than its adjacent regions. Distribution pattern of apparent stress seems to have a large-scale correlation with the cumulative energy release level in the 20th century. |
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| Keywords: | apparent stress earthquake energy seismic moment earthquakes in China |
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