大华北地区应变参数时空变化统计分析

摘要

Some good observation quality strain data are selected to calculate and count strain components:changes of maximum principal strain,minimum principal strain,principal direction and maximum shear strain from May 15,2016 to 2017,including data from Liaoning,Hebei,Shanxi,Shandong,Jiangsu,and Hubei provinces.Relevant regional short-term seismic activities are also analyzed with corresponding regional earthquakes measuring 3 or above.%选取辽宁省、河北省、山西省、山东省、江苏省、湖北省部分观测质量好的应变数据,计算和统计2012～2016-05-15期间区域应变参数——最大主应变、最小主应变、主方向、最大剪应变变化情况,并结合区域3级以上地震统计情况分析相应区域的短期地震活动性.