Explicit compact expressions were obtained for the far displacement field of Rayleigh and Love waves generated by force configurations which served to simulate sheartype faults with arbitrary dip and slip. The medium transfer functions for dipolar sources were computed for a Gutenberg fiat continental earth model with 23 layers. These were then used to obtain universal radiation pattern charts ...

In the present paper we study the effect of rigid boundary on the propagation of Love waves in an inhomogeneous substratum over an initially stressed half space, where the heterogeneity is both in rigidity and density. The dispersion equation of the phase velocity has been derived. It has been found that the phase velocity of Love wave is considerably influenced by the rigid boundary, inhomogen...

A mathematical model is considered to investigate the behavior of horizontally polarized shear waves (SH-waves) in fluid saturated porous medium sandwiched between heterogeneous half-spaces. Heterogeneity in the upper half-space is due to linear variation of elastic parameters, whereas quadratic variation has been considered for lower half-space. The method of separation of variables and Whitta...

We derive displacement equations for Rayleigh and Love waves in simple structural models for point sources in order to better understand source effects on their wavefields and radiation patterns. In doing so, we analytically demonstrate the existence of surface waves in these Earth models. Rayleigh and Love wave radiation patterns are found to mimic the P and SH radiation patterns, respectively...

Rayleigh and Love waves recorded on seismic-shot gathers can be used to determine the thickness and shear-wave velocity of shallow subsurface layers. After the data are transformed into the k-f domain, the dispersion curve for each of the phases can be picked from maxima on the contour plot. This dispersion curve is then inverted for the velocities and depths. Different frequencies in the dispe...

Propagation of Love-type waves is investigated in a model multilayered elastic solid half-space containing voids. Using Haskell matrix method, the dispersion relations are derived for two situations topmost boundary surface model: (a) when it stress-free and (b) rigid. For both situations, there exist fronts that dispersive nature propagating with distinct speeds. One these wave analogous to ob...

Love waves are antiplane elastic which propagate along the surface of a heterogeneous medium. Under time-harmonic regime, they governed by scalar equation Helmholtz type. We exploit invariance this governing under an in-plane arbitrary coordinate transformation to design broadband cloaks for defects. In particular, we apply elastodynamics determine anisotropic, position dependent, mechanical pr...

The radiation patterns of Love and Rayleigh waves from three nuclear explosions (Hardhat, Haymaker, and Shoal) are studied to determine the nature of the asymmetry of radiation and the mechanism of Love wave generation. From a comparative study of different explosions it is reasoned that the Love waves are generated at the source of the explosion. The source function, represented as the superim...