中文摘要：

选取了1966年以来云南地区22个Ms≥6．0震例的地震影响场和余震序列，对两者的关联度进行空间统计分析。将余震分级后按2小时递增进行时段划分，然后用一元线性回归方法对各组余震数据进行线性模型回归。采用自变量极值法控制回归直线的范围，将得到的回归线段中点判定为宏观震中，线段方向判定为影响场方向。结果表明：此方法判定的结果总体上比较接近各震例的宏观震中和影响场方向。

英文摘要：

Collecting the isoseismal map and aftershocks of 22 earthquake events （Ms≥6.0） occurred in Yunnan since 1966, we studied a method for the rapid assessment of the macro-epicenter and earthquake-effected field. First- ly, we classified the aftershocks by magnitude and time into different groups, then we calculated the data of ev- ery group by simple linear regression. Controlling the length of regressive line through Variable Extreme Value method, we regarded the middle point of the regressive line as the macro-epicenter, and the line＇s direction as the isoseisma＇s direction. The results are generally in line with the data Izot by the field survey.