Ground Motion Attenuation Relation in the Yunnan Area

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 seismo-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.