近500年中国及邻区强震空间格局及迁移模式初步分析

周成虎; 裴韬; 李全林; 陈锦标; 王鐯森

Volume 28 Issue 3

May 2003

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Article Navigation > Earth Science > 2003 > 28(3): 306-314

ZHOU Cheng-hu, PEI Tao, LI Quan-lin, CHEN Jin-biao, WANG Zhuo-sen, 2003. Research on Spatial Pattern and Temporal-Spatial Migration Model of Strong Earthquakes in China and Its Adjacent Areas. Earth Science, 28(3): 306-314.

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Research on Spatial Pattern and Temporal-Spatial Migration Model of Strong Earthquakes in China and Its Adjacent Areas

1.
State Key Laboratory of Resources and Environmental Information System, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China
2.
Institute of Geophysics, CSB, Beijing 100081, China
3.
Department of Resource and Environmental Sciences, Beijing Normal University, Beijing 100875, China

Received Date: 2002-12-25
Publish Date: 2003-05-25

Abstract

Abstract

The development of the seismic database of China and its adjacent areas is introduced in the first part of this paper. Based on the combination of the difference between western and eastern parts of China on plate tectonics, stress state and structure of crust-mantle, the authors analyze the spatial pattern of strong earthquakes from aspects of the whole dataset, historical seismic records, instrumental records and hypocenter depth. It is found that before 1900 DC, North China presented the great trapeziform pattern. After 1900 DC, the west part of China was characterized by the huge sector, with the deepest regions of foci located in the two vertices of the huge sector, namely Xingdukushi-Pamier region and the area along the border of India and Burma. Then, the linear and regional migrating modes are summarized according to the spatial pattern of strong earthquakes in China. Detailedly, the linear migration can be subdivided into two modes, straight jumping and pendulum. The mechanisms of all types of migrating modes are briefly discussed based on the models of fault fracture, spring-block, structural difference between crust and mantle and their relative movement as well.
- strong earthquake,
- spatial pattern,
- temporal-spatial migration

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References(31)

References

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