川滇交界中段历史强震及其活动特征

Historical strong Earthquake And Activity Characteristics At The Mid-segment Where Sichuan And Yunnan Meet

本文在详细补充调查和充分整理前人资料基础上，对川滇交界中段的其中６次强震进行了等烈度图编制，并对川滇菱块东界大地震的等烈度线分布特征进行了研究，按照构造孕育与发震扩展的思路，探讨了川滇交界中段的中长期地震危险性。

Based on replenishing investigation and sorting out the data of predecessors ,the iso-intensity maps of 6 strong earthquakes which occurred at the mid-segment where Sichuan andYunnan meet have been drawn up in this paper. We research the distribution characteristics ofiso-intensity curves. Accroding to the thinking of structural preparation and seismogenicextension,we made an inquiry into the earthquake risk of medium-long term at the segment.