| 震源断裂规模与震级的定量关系 |
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| 引用本文： | 叶文华.震源断裂规模与震级的定量关系[J].地震地质,1987,9(2):17. |
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| 作者姓名： | 叶文华 |
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| 作者单位： | 国家地震局地质研究所 |
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| 摘 要： | 研究震源参数(震源断裂规模)与震级的定量关系必须考虑震级的物理含义。本文利用我国海城地震、唐山地震前后的151个小震(1.5≤M_L≤3.9)和国内外58个浅源的中、强震(4.4≤M_s≤8.2)资料,得到了一组稳定的、互相一致的震源断裂参数与震级M_L和M_S的函数关系。由此讨论了常用震级M_L、M_S与m_b之间的关系。 新的震源参数与震级关系表明,震源断裂规模如断裂长度、面积或错距等与面波震级M_S和近震震级M_L不存在一一对应的比例关系
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| 关 键 词： | 震源参数 近震震级 面波震级 |
QUANTITATIVE REALTIONSHIP BETWEEN THE SOURCE PARAMETERS AND THE EARTHQUAKE MAGNITUDES |
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| Ye Wen-hua.QUANTITATIVE REALTIONSHIP BETWEEN THE SOURCE PARAMETERS AND THE EARTHQUAKE MAGNITUDES[J].Seismology and Geology,1987,9(2):17. |
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| Authors: | Ye Wen-hua |
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| Abstract: | The physical significance of earthquake magnitudes must be considered when studing the quantitative relationship between the source parameters and earthquake magnitudes. In this paper, a set of stable, uniform functional relations of the source fracture parameters to magnitudes ML and Ms have been obtained by using the data of 151 smaller earthquakes (1.5≤ML≤3.9) preceding and following Hai Cheng and Tangshan earthquakes as well as 58 moderate and strong shallow earthquakes(4.4≤Ms≤8.2) on the earth. The relation between the magnitudes ML, Ms and mb is discussed as well.The alternative relationship between the source fracture parametes and earthquake magnitudes shows no proportional one-to-one correspondence between the source fracture size of earthquake (i. e fault length, fault area or dislocation etc.) and surface wave magnitude Ms and local magnitude ML |
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| Keywords: | Source parameter Local magnitude Surface wave magnitude |
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