唐山地震前地震活动模糊熵值的异常特征

详细信息

RESEARCHES ON SEISMICITY FUZZY ENTROPY ANOMALY CHARACTERISTICS BEFORE TANGSHAN EARTHQUAKE

摘要: 定义了地震活动模糊熵概念,计算了唐山地震前地震活动模糊熵随时间、空间的变化,发现唐山M_s7.8地震发生前,地震活动模糊墙值下降,唐山M_s7.8地震发生在地震活动模糊摘值较低的地方。这符合大地震前震源区地震活动性从无序趋向有序的规律。地震活动模糊熵把模糊因子与震群活动熵统一起来,比震群活动熵能更突出地反映地震活动异常。
- 唐山地震 /
- 模糊识别 /
- 地震活动性 /
- 信息熵
Abstract: Seismicity fuzzy entropy H is defined in this paper. That seismicity fuzzy entropy values change with time, with space before Tangshan earthquake is computed in this paper. It is discovered that seis micity fuzzy entropy values fell down be fore Tangshan earthquake, and Tangshan earthquake occurred at the area of low seismicity fuzzy entropy value. This result fits well with the law that seismicity in earthquake source area changes from disorder to order before large earthquake. Seismicity fuzzy entropy unifys the fuzzy factor and the seismicity entropy as one, it can reflect seismicity anomaly better than seismicity entropy itself.
- Seismicity fuzzy entropy /
- earthquake source area /
- Tangshan earthquake

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