[1]YUAN Zhengyi,NIU Anfu,ZHAO Jing,et al.Analysis of Cross Fault Anomalies in Southeast Yunnan Based on Multi-parameters[J].Journal of Seismological Research,2018,41(04):517-524.
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Analysis of Cross Fault Anomalies in Southeast Yunnan Based on Multi-parameters
Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
41
Number of periods:
2018 04
Page number:
517-524
Column:
Public date:
2018-10-20
- Title:
- Analysis of Cross Fault Anomalies in Southeast Yunnan Based on Multi-parameters
- Keywords:
- southeast Yunnan; anomaly parameter of fault deformation; principal component analysis; fault motion coordination ration; strong earthquake risk
- CLC:
- P315.725
- DOI:
- -
- Abstract:
- On Aug.13 and 14,2018,two MS5.0 earthquakes successively occurred in Tonghai Country,Yunnan Province,which has broken the 504 days of MS≥5.0 seismic quiescene.In order to study the strong earthquake background in southeast Yunnan,we calculated anomaly parameters of fault deformation based on the short cross-fault level data in Yunnan,and the results showed that the anomaly frequency is high.Then,the level and baseline data of several sites in southeast Yunnan were analyzed in detail.The annual slip rate,the synthesis of regional principal component information,and the improved coordination ratio parameters of fault movement were calculated.According to the analysis of earthquake examples,the fault movement in the southeast Yunnan is larger in amplitude,longer in duration,and the magnitude of two Tonghai MS5.0 earthquakes is small,so the danger of a strong earthquake still exists in the study area.
- References:
- -
- Similar References:
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Last Update:
2018-10-30