Francisco J. Sánchez-Sesma

TL;DR: In this paper, a method is presented to compute the diffraction of P, SV, and Rayleigh waves by an irregular topographic feature in an elastic half-space, based on an integral representation of the diffracted elastic fields in terms of single-layer boundary sources that is derived from Somigliana's identity.

TL;DR: In this article, the average energy density of the motions at a given receiver, in the frequency domain, measures average energy densities and is proportional to the imaginary part of the Green's function when both source and receiver are the same.

TL;DR: In this paper, the authors show that the Fourier transform of the average of the cross correlation of motion between two points within an elastic medium is proportional to the imaginary part of the exact Green's tensor function between these points, provided the energy ratio ES / EP is the one predicted by equipartition in two and three dimensions.

TL;DR: Why and how cross-correlation of noise records can be used for geophysical imaging and a new way to achieve surface wave seismic experiments using cross-Correlation of unsynchronized sources are introduced.

TL;DR: A review of some of the available methods to study the effects of site conditions on strong ground motion is presented in this paper, where the need of unified treatment of source, path and side effects in the assessment of seismic risk is pointed out.