中国大陆活动地块边界带地震活动过程及其趋势研究

Abstract

Abstract: This research computes the parameters of aberrance along the 26 active tectonic boundaries in Chinese mainland and analyzes the types of earthquake activity. From these parameters, the earthquake activity along the active boundaries in eastern Chinese mainland is clustering; the earthquake activity along the active boundaries in western Chinese mainland is Poisson or quasi-periodic. Especially, the earthquake activity on both northland and eastern Tibet plateau is quasi-periodic due to strong subduction of continental plates. The strong subduction along the peripheral boundaries in western Chinese mainland is Poisson. Based on research on the active boundaries, we calculate the lognormal distribution function, accumulative probabilities and conditional probabilities of the earthquake occurrence along the active boundaries. Then the present seismic activity and risk along these boundaries and the variances of the risk in the coming five years are discussed.

Key words: Active tectonic block, Active tectonic boundary, Strong earthquake activity, Lognormal distribution

CLC Number:

P315.7

SHAO Zhi-gang, ZHANG Guo-min, LI Zhi-xiong, XIA Hong. Research on the process and tendency of seismicity along the active tectonic boundaries in Chinese mainland[J]. EARTHQUAKE, 2008, 28(3): 33-42.

References

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Research on the process and tendency of seismicity along the active tectonic boundaries in Chinese mainland

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