Study on Simulation of Foreshock Activity Properties before Strong Earthquake Using Heterogeneous Cellular Automata ModelsReport as inadecuate




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Threedifferent degrees of heterogeneous fault models are simulated by using 2-Drandom dynamic cellular automata models for analyzing macroscopic behaviors ofseismic activity evolution influenced by heterogeneity of fault structures. Theresults show that the heterogeneities of fault structures can influenceevolution properties of the foreshock activity and rupture process, such as themediate heterogeneous and less heterogeneous structures, which show relativelyhigher ASR rates and more significant seismic gaps before main shocks. Besides,stress drop distribution ranges of the foreshock events when approaching a mainshock show more homogenous narrower than that of the foreshock events farfrom a main shock. So the heterogeneity of fault structures plays an importantrole in strong earthquake preparation processes.

KEYWORDS

Cellular Automata Model; Simulation; Heterogeneity; Foreshock Activity

Cite this paper

Li, M. , Yang, F. and Zhang, T. 2014 Study on Simulation of Foreshock Activity Properties before Strong Earthquake Using Heterogeneous Cellular Automata Models. International Journal of Geosciences, 5, 274-285. doi: 10.4236-ijg.2014.53028.





Author: Meng Li, Feng Yang, Tao Zhang

Source: http://www.scirp.org/



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