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本文应用灰色系统理论,建立了华北地震区强震(M≥7.0)的预测模型: X_(k+1)~((1))=379.201e~(0.1234k)-359.201据比预测,华北地区下一次强震将在1993年前后发生。
Based on the gray system theory, the prediction model of strong earthquakes (M≥7.0) in North China earthquake area is established: X k + 1 ~ (1) = 379.201e ~ (0.1234k) -359.201 According to the ratio forecast, The next strong earthquake will occur around 1993.