| 强震前地电阻率异常的模糊识别 |
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| 引用本文： | 郑熙铭,冯德益.强震前地电阻率异常的模糊识别[J].地震研究,1991,14(2):104-111. |
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| 作者姓名： | 郑熙铭 冯德益 |
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| 作者单位： | 天津市地震局
(郑熙铭，冯德益)，天津市地震局(李广鑫) |
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| 摘 要： | 本文用模糊集从属函数方法,对1976年唐山7.8级地震和宁河河6.9级地震前华北地区20多个台站的地电阻率观测数据和1988年澜沧——耿马7.6级地震前腾冲台地电阻率观测数据以及1989年巴塘6.7级地震前甘孜台地电阻率观测数据进行了计算,共计处理5500多个数据,从中提取了中期趋势与短临异常,并对唐山地震前地电阻率异常进行了概略分析。
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| 关 键 词： | 地震 强震 前兆 地电阻率 模糊识别 |
THE FUZZY RECOGNITION OF ANOMALOUS TELLURIC RESISTIVITY BEFORE STRONG EARTHQUAKES |
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| Zheng Ximing Feng Deyi Li Guangxin.THE FUZZY RECOGNITION OF ANOMALOUS TELLURIC RESISTIVITY BEFORE STRONG EARTHQUAKES[J].Journal of Seismological Research,1991,14(2):104-111. |
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| Authors: | Zheng Ximing Feng Deyi Li Guangxin |
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| Institution: | Seismological Bureau of Tianjin |
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| Abstract: | By using the method of membership function of fuzzy set, the telluric resistivity data from more than 20 stations in North Chirm before the 1976 Tangshan earthquake (M=7.8) and Ninghe earthquake ( M = 6.9 ) have been calculated in this paper. The telluric resistivity data from Tengchong station before the 1988 Lancang-Gengma earthquake (M=7.6) and from Ganzi station before the 1989 Datang earthquake (M = 6.7) have also been calculated. The obtained results show that the short-term and imminent. anomalies can be recognized obviously. Lastly, the characteristic of anomalous telluric resistivity before Tangshan earthquake has been analysed briefly. |
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| Keywords: | Telluric resistivity Fuzzy recognition Earthquake precursor |
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