[1]ZHANG Xi,CUI Du-xin,JIANG Feng-yun.Inversion of Seismic Parameters of the Wenchuan Earthquake and Analysis on Variation of its Coulomb Stress Based on GPS observation[J].Journal of Seismological Research,2009,32(04):351-356.
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Inversion of Seismic Parameters of the Wenchuan Earthquake and Analysis on Variation of its Coulomb Stress Based on GPS observation
Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
32
Number of periods:
2009 04
Page number:
351-356
Column:
Public date:
2009-04-23
- Title:
- Inversion of Seismic Parameters of the Wenchuan Earthquake and Analysis on Variation of its Coulomb Stress Based on GPS observation
- CLC:
- P315.72+7
- DOI:
- -
- Abstract:
- In this paper,using the GPS observational data before and after the great Wenchuan earthquake on 12 May 2008,aided by rectangle dislocation model,the seismic parameters of this earthquake are obtained.Applying these parameters,the variation of Coulomb rupture static stress caused by this earthquake,is acted on its peripheral fault segments reflecting strain accumulation,before this earthquake revealed by the inversion of negative dislocation from GPS data.The influences of this great earthquake on strain accumulation of peripheral tectonic faults are researched.The result shows that,this earthquake region displayed remarkable co-seismic deformation of thrust and dextral slip.This great earthquake affected the eastern boundary where Gansu and Sichuan provinces meet and the boundary where Gansu,Sichuan and Shaanxi provinces meet,together with the southern segment of Xianshuihe fault and the northern end of Anninghe fault,to some degree,mainly reflecting possible enhanced action for strain accumulation.
- References:
- -
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Last Update:
2009-04-23