[1]LIU Lei,ZHAO Ningyuan,WANG Yang.Analysis of Locking and Seismic Risk of the Altyn Tagh Fault based on GPS Data[J].Journal of Seismological Research,2018,41(03):407-414.
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Analysis of Locking and Seismic Risk of the Altyn Tagh Fault based on GPS Data
Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
41
Number of periods:
2018 03
Page number:
407-414
Column:
Public date:
2018-08-20
- Title:
- Analysis of Locking and Seismic Risk of the Altyn Tagh Fault based on GPS Data
- Keywords:
- the Altyn Tagh fault; negative dislocation inversion with Tdefnode; fault locking degree; seismic risk
- CLC:
- P315.725
- DOI:
- -
- Abstract:
- By using the GPS velocity field during 1991～2015,we analyze the slip rate of the Altyn Tagh fault,and then we invert the fault locking and slip deficit of the Altyn Tagh fault by negative dislocation inversion with Tdefnode code.Moreover,combining with the distribution characteristics of small earthquakes,we analyze the seismic risk of the Altyn Tagh fault.The results show that the slip rate of the western segment is 7.1 mm/a,the middle segment is 7.8 mm/a,and the eastern segment is 5.0 mm/a.The slip rate decreases in the intersection with NW faults.The middle-eastern segments of the fault is completely locked.And the slip deficit rate of the middle segment is about 7～8 mm/a,and increased to 10 mm/a in the eastern segment.Combining with the hypocentral depth profile,we speculate the middle-eastern segments is a seismic gap,and have a strong seismic risk.Therefore,we should pay more attention to it.
- References:
- -
- Similar References:
Memo
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Last Update:
2018-07-20