Abstract Before the Jinghe MS6.6 earthquake,significant strain abnormal changes were recorded at Nilka, Balguntay and Xiaoquangou stations. After ensuring the anomaly in the field several times and through argumentation, we affirm that the anomaly is reliable.The relative strain field is calculated based on the records of these three stations.The results show that there is significant acceleration and deflection change in the maximum (small) principal strain and direction before the earthquake.In addition,it is also found that the principal direction is relatively consistent, with the orientation of the focal mechanism solution P axis during the anomaly of the relative strain field.To a certain extent, it is possible that abnormal changes may be related to earthquakes.
GAO Lijuan,XING Ximin,GAO Ge et al. Relative Stress Field Analysis of Component Drilling Strain Region beforethe Jinghe MS6.6 Earthquake on August 9,2017[J]. jgg, 2019, 39(10): 1002-1006.
GAO Lijuan,XING Ximin,GAO Ge et al. Relative Stress Field Analysis of Component Drilling Strain Region beforethe Jinghe MS6.6 Earthquake on August 9,2017[J]. jgg, 2019, 39(10): 1002-1006.
