Analysis of Synchronization Abnormal Characteristics of Extensometers in Fushun and Tieling Seismic Stations
In 2019,the observed value of the extensometers at Fushun and Tieling Seismic Stations showed a trend of accelerated changes. After verification,cave body strains of Fushun and Tieling Seismic Stations were identified as anomalies for tracking. In 2020,both anomalies showed signs of recovery. Under the background again,the Fushun extensometer and Tieling extensometer will show a trend of expansion again in 2021,and the curves of the two stations are consistent. In the paper,we analyzed periodic analysis and regional long baseline GNSS data results in three aspects,so we can judge the natural anomalies and provide a basis for future anomaly verifications.
body straintensile changeinterference analysisabnormal reliability