云南及周边主要地震带地震活动震级频度关系统计研究

Statistical study on magnitude-frequency relationship of main earthquake regions in and around Yunnan

摘要: 云南地震活动具有频度高、强度大、震源浅和破坏性大的特征，为探讨云南及周边地区主要地震带的震级频度关系和b值，本文采用最小二乘法，对云南及其周边地区的鲜水河地震带、滇西南地震带、华南沿海地震带、藏中地震带的b值进行了计算，同时统计了各地震带的震级频度关系，最后对各地震带的震级频度关系和b值进行了分析和比较.

Abstract: The seismic activity in Yunnan has characteristics of high frequency,high strength,shallow seismic source and strong destructive.In order to explore magnitude-frequency relationship and b-value of the major seismic regions in Yunnan and surrounding areas,the b-values of Xianshuihe-Diandong,Southwest Yunnan,South China Coast and Central Tibet seismic regions are calculated by least square method.The magnitude-frequency relationships for each seismic region are statistically studied.Finally,the magnitude-frequency relationships and b-values of the four seismic regions are compared and analyzed.