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震级的大小与震源断层长度有关,决定着烈度等震线所围成的面积。本文对山西历史资料中,给出等震线图的中强震,进行了测定计算,并求出烈度圈长轴与震级的关系式:logL_1=0.21M_s+0.52,以利地震监视预报中估算震级和估计破坏区范围使用。
The magnitude of the magnitude is related to the focal fault length, which determines the area enclosed by the seismic intensity contour. In this paper, the medium-strong earthquakes in the isoseismic map of Shanxi Province are calculated and calculated, and the relationship between the long axis of the intensity circle and the magnitude is obtained: logL_1 = 0.21M_s + 0.52 Magnitude and estimated damage area range to use.