Research on Jinzhou Fault Activity Based on Cross-Fault Monitoring Data
Abstract We use the cross-fault deformation observation data of Jinzhou seismic station to analyze the current activity characteristics of Jinzhou fault. The long-term trend analysis results show that the Jinzhou fault is dominated by right-lateral and normal fault activities, and the overall activity level is relatively weak. The results of segmented analysis of fault activity show that the activity rate of northern section is higher than that of southern section. The GPS data shows that 2011-03-11 MW9.1 earthquake in Japan had a mitigative effect on stress accumulation in northeast China. Combined with the analysis of cross-fault data of Jinzhou fault, we conclude that the annual fault activity rate has been significantly weakened in 2011-2014, and the fault activity has been consistent with its background data since 2014, but the activity level is relatively weak.
Key words ：
cross-fault leveling
fault creep observation
Jinzhou fault
fault activity
strong earthquakes in Japan
Cite this article:
KONG Xiangrui,ZHAI Lina,LI Mengying et al. Research on Jinzhou Fault Activity Based on Cross-Fault Monitoring Data[J]. jgg, 2022, 42(4): 416-420.
KONG Xiangrui,ZHAI Lina,LI Mengying et al. Research on Jinzhou Fault Activity Based on Cross-Fault Monitoring Data[J]. jgg, 2022, 42(4): 416-420.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2022/V42/I4/416
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