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Earthquakes on dipping faults: the effects of broken symmetry
Author(s): 
Pages: 78-83
Year: Issue:  4
Journal: Translated World Selsmology

Abstract: 对倾向断层中地震的动力学模拟表明,不对称的近源地面运动是由这类断层不对称的几何形态引起的。在初始应力大小相同的情况下,逆(冲)断层引起的地面运动要比正断层引起的地面运动大2倍或更多。无论是在逆(冲)断层还是正断层引起的地震中,上盘的运动都比下盘的大。地震产生的应力场与地球自由表面的相互作用导致了与时间相关的正应力的产生,从而造成了正断层与逆(冲)断层之间的不对称性。断层上、下两盘的不对称性是由于断层两盘质量和几何形态的不对称性而形成的。
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