[1]ZHU Lin,LI Tengfei,SHI Fuqiang,et al.The Coulomb Stress Evolution after the 1976 Tangshan Strong Earthquake Swarm and Its Relationship with the 2020 Guye M5.1 Earthquake[J].Journal of Seismological Research,2021,44(01):1-8.
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The Coulomb Stress Evolution after the 1976 Tangshan Strong Earthquake Swarm and Its Relationship with the 2020 Guye M5.1 Earthquake
Journal of Seismological Research[ISSN 1000-0666/CN 53-1062/P] Volume:
44
Number of periods:
2021 01
Page number:
1-8
Column:
Public date:
2021-01-15
- Title:
- The Coulomb Stress Evolution after the 1976 Tangshan Strong Earthquake Swarm and Its Relationship with the 2020 Guye M5.1 Earthquake
- CLC:
- P315.7
- DOI:
- -
- Abstract:
- Based on the Burgers rheological model which is absorbed in the synthetic simulation of long-term tectonic deformation and short-term postseismic deformation,we simulated the co- and postseismic deformation and the related coseismic and postseismic Coulomb stress evolution that caused by the 1976 Tangshan strong earthquake swarm.Our results show that the two segements of mainshock rupture and the two strong aftershocks in Luanxian and Ninghe of 1976 Tangshan strong earthquake swarm could enhance the Coulomb stress on the rupture plane of the 2020 Guye M5.1 earthquake.The temporal evolution of the lithosphere postseismic relaxation Coulomb stress show that,before and after the postseismic 15 years,the evolution state of Coulomb stress shows significant difference.Within 15 years after the Tangshan earthquake,the Coulomb stress evolution is dramatic,and while after 15 years,it is increased steady and slowly.This pattern is similar to the seismicity in the aftershock zone of Tangshan strong earthquake swarm.This may indicated that the dynamic stress adjustment in the aftershock zone of Tangshan strong earthquake swarm have been stabilization.
- References:
- -
- Similar References:
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Last Update:
2021-01-15