Research on the Spatial Distribution Characteristics of b-value in Southwest Yunnan

Southwestern YUNNAN is located in the southeast edge of the Tibetan plateau, is one of strong continental tectonic activities and frequent earthquake area in our country. In this paper, spatial difference of distribution b values along the fault belt, reflect the level of stress accumulation and activity habits in the different fault belt and the same fault different section, which reflects the spatial difference of seismic risk. The research result shows that the distribution b value and different sections in the Fault belt and fracture belt are uneven. The researching methods of this article and its conclusion can be used as seismic activity and risk evaluation research reference in the same area. The study results have important value for seismic risk zone and seismic safety assessment.