Key Laboratory of Earthquake Prediction;
Institute of Earthquake Forecasting;
China Earthquake Administration;
Beijing 100036;
China;
Institute of Geophysics;
China Earthquake Administration;
Beijing 100081;
China;
Handan Central Seismic Station;
Hebei Earthquake Agency;
Handan;
Hebei 056001;
China;
Xiaojiang faults; temporary seismic array; shearwave splitting; anisotropy in the upper crust; stress;