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本文从震级—频度 LogN=a-bM 和累积频度关系 LogN_c=a_c-b_cM 得出小地震区可能发生的最大地震强度M_(max)=a_c/b_c+(1/b_c)Log(b_cL_n10)-(1/2b_c)Log(1+b_cL_n10)。以此研究了26个地震区(其中欧洲17个,川滇9个)的最大地震强度,与观测资料基本符合。比较各作者用于欧洲17个区的不同方法,结果大体一致,但本文的结果与观测资料更为接近。在一般情况下,M(max)≈a_o/b_c,当 b_c 值很低时,这一估计偏高。对结果进行了讨论。
In this paper, the maximum seismic intensity that may occur in a small earthquake area is obtained from the relationship between magnitude-frequency LogN = a-bM and cumulative frequency LogN_c = a_c-b_cM Log_ (b_cL_n10) - (1 / 2b_c) Log (1 + b_cL_n10). In this way, the maximum seismic intensity in 26 seismological regions (including 17 in Europe and 9 in Sichuan, Yunnan and Yunnan) is basically consistent with the observed data. Comparing different methods used by authors in 17 European regions, the results are generally consistent, but the results in this paper are closer to the observed data. In general, M (max) ≈a_o / b_c, this estimate is high when b_c is low. The results were discussed.