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《NORTHWESTERN SEISMOLOGICAL JOURNAL》 1995-04
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MULTIFRACTAL CHARACTERISTICS AND DYNAMICAL SOURCES OF CELLULAR AUTOMATA

Gao Yuan;JiYing and;Chen Yong(Center for Analysis and Prediction,SSB,Beijing 100036,China)  
Using the model made from lots of spring-blocks, we may model the complication of earthquakes,In this paper,by cellular automata(CA)as mathematical tools,with the resultsof seismology and rock mechanics,comsidering about the energy gathering and energy losses,we do digital modelling for earthquake events,then do multifractal analysis for“earthquakes”events from this model in both time and space fields,and discuss self-organized critical(SOC)state,Further,we get the conclusion in which event distribution shows hierarchy structure,atleast, in time field and is coincident with self-similarity nature .This CA model is a determinacy Chaos system, its statistics for frequency and magnitude of lots of events underthe state of SOC accords with Gutenberg-Richter index law well.Th e results show thatalthough self-organized (SO)state might be more accurate earthquake expression,SOC still isa very good mode in earthquake studies.
【Fund】: 地震科学联合基金
【CateGory Index】: P315.8
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