| 考虑吸收时确定震源深度的宏观地震方法 |
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| 引用本文： | 段星北.考虑吸收时确定震源深度的宏观地震方法[J].东北地震研究,1993(2). |
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| 作者姓名： | 段星北 |
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| 作者单位： | 国家地震局地球物理研究所 北京 |
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| 摘 要： | 基于对在近场吸收系数A/km~2和源指标几何扩散率n都因实际地震而异的认识,导出了完整宏观地震震源深度公式,获得确定震源深度考虑吸收的宏观地震方法的通解。对此通解及宏观地震震源深度公式各提出三种算法以满足三种需要,经过三个实例,两公式六种算法对比计算结果都很好,并利用所得震源类型结合宏观场探索了震源几何学,为钻探地震直接观察震源的钻孔设计提供依据。
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| 关 键 词： | 震源深度 宏观地震方法 Gassmann公式 |
MACROSEISMIC METHOD DETERMINING DEPTH OF FOCUS TAKING INTO ACCOUNT ABSORPTION |
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| Duan Xingbei.MACROSEISMIC METHOD DETERMINING DEPTH OF FOCUS TAKING INTO ACCOUNT ABSORPTION[J].Seismological Research of Northeast China,1993(2). |
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| Authors: | Duan Xingbei |
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| Abstract: | We have derived a macroseismie formula determining depth of focus because absorption coefficient A/km~2 of near field and geometric diffusibility n of propagation are different with respect to different earthquakes. Meanwhil, a general solution determining hypocenter depth has been also obtained taking into account absorption relating to macroseismic method. The three computing methods presented in this paper can suffice three different needs. |
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| Keywords: | Depth of focus macroseismic method Gassmann formula |
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