Deformation of a layered half-space due to a very long tensile fault

Journal of Earth system science

Sarva Jit Singh1¹  Mahabir Singh1¹ 

[1] Department of Mathematics, Maharshi Dayanand University, Rohtak 124 001, India.$$

关键词: Coseismic deformation;    layered half-space;    postseismic deformation;    relaxed rigidity;    tensile fault.;   

DOI  :  

学科分类：天文学(综合)

来源: Indian Academy of Sciences

【 摘 要 】

The problem of the coseismic deformation of an earth model consisting of an elastic layer of uniform thickness overlying an elastic half-space due to a very long tensile fault in the layer is solved analytically. Integral expressions for the surface displacements are obtained for a vertical tensile fault and a horizontal tensile fault. The integrals involved are evaluated approximately by using Sneddon's method of replacing the integrand by a finite sum of exponential terms. Detailed numerical results showing the variation of the displacements with epicentral distance for various source locations in the layer are presented graphically. The displacement field in the layered half-space is compared with the corresponding field in a uniform half-space to demonstrate the effect of the internal boundary. Relaxed rigidity method is used for computing the postseismic deformation of an earth model consisting of an elastic layer of uniform thickness overlying a viscoelastic half-space.

【 授权许可】

Unknown