地震破裂模式的模糊模式识别  

THE FUZZY IDENTIFICATION METHOD ABOUT EARTHQUAKE RUPIURE MODELS

作　　者：王时标[1] 姚振兴[1] 

机构地区：[1]中国科学院地球物理研究所,北京100101

出　　处：《地球物理学报》1998年第S1期253-262,共10页Chinese Journal of Geophysics

摘　　要：把几种可能的物理机制作为识别对象，定义了计算各识别对象与物理现象相符合的证据量．从这种思想出发，提出了判定强震破裂模式的模糊模式识别准则，只要把各识别对象的“证据量”带人这个识别准则，就可识别出某指定强震的地震破裂机制该方法被具体地应用于炉霍地震（1973，Ms＝7.9）破裂机制的识别，结果表明炉霍地震符合barrier破裂机制这个结论与有关炉霍地震破裂机制的地震学研究结果是完全一致的该方法比已有的其他方法更为简便，因此有推广价值.The possible physical mechanisms are treated as the possible 'objects', the evidence nUmber of each 'object' is defined. On the basis of this idea, the fuzzy identification method on how to discern the earthquake rupture mechanism is proposed. Based on the comparison of the evidence numbers of the 'objects', it is not difficult to know the earthquake rupture mechanism of a given strong earthquake occurrence. This method is used to identify the earthquake rupture mechanism of Luhuo(1973, Ms= 7.9) earthquake. It is proved that the rupture mechanism of Luhuo earthquake is corresPOnded with the barrier model. This result is corresponded with the exist research results about Luhuo earthquake rupture mechanism by means of seismology methods. Obviously, the fuzzy identification method used here is much more simple than the existed seismology identification methods in identifying earthquake rupture mechanisms. Therefore, the new method is worth to be used widely in seismology fields.

关 键 词：破裂机制 震源断层 模糊识别 证据量 

分 类 号：P315.69[天文地球—地震学]