云南分区地震动衰减关系

Ground Motion Attenuation Relation in the Yunnan Area

受震源特性、传播路径等因素的影响,地震动特征具有很强的区域性。在近年来获取的强震动记录的基础上,根据地震地质特征和强震动记录的分布情况,将云南划分为3个区域。采用统计法和映射法,分别构建了这3个区域的地震动峰值衰减关系,并对其进行了分析和对比。

Affected by some factors such as focal mechanism, the propagation route of seismic wave, etc. , ground motion has very obvious regional features. So we divided the Yunnan area into three zones according to the seistoo-geological characteristics and the distribution of strong ground motion recordings in Yunnan, and constructed the attenuation relations of ground motion respectively in the three zones using statistic method and mapping method, finally make a further analysis and comparison of these attenuation relations.