潮汐应力-应变对某些地震序列的调制触发

Abstract

Abstract: Analysis on the correlation of the seismic sequences of shallow earthquakes and tidal stress in China′s mainland since 1960 shows that some seismic sequences including seismic sequences of foreshocks, foreshocks-main shocks, foreshocks-main shocks-aftershocks and main shocks-aftershocks, such as the seismic sequences of foreshocks-main shocks of the Longling earthquake, the seismic sequences of foreshocks-main shocks-aftershocks of the Xingtai earthquake and the seismic sequences of main shocks-aftershocks of the Tangshan earthquake etc., were obviously triggered by tidal stress. The triggering of these earthquakes by tidal stress was quite obvious in characteristics and is of important implication in earthquake prediction. A preliminary discussion on the mechanism of the triggering mechanism could be related with the geological structures of earthquake preparation system, the property of rocks in the focal areas, the orientations of the stress field and the directions of the earthquake ruptures.

Key words: Triggering, Seismic sequence, Tidal stress, Geological structure

CLC Number:

P315.72

LI Kai-wu, JIANG Zai-sen, SHEN Tong. Triggering of seismic sequences by tidal stress[J]. EARTHQUAKE, 2005, 25(4): 75-86.

References

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Triggering of seismic sequences by tidal stress

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