Over the last 15 years, it has become established that crack-induced stress-aligned shear
wave splitting, with azimuthal anisotropy, is an inherent characteristic of almost all rocks in …

There are currently three major competing views on the essential geometrical, mechanical,
and mathematical nature of faults. The standard view is that faults are (possibly segmented …

The shear-wave splitting observed along almost all shear-wave ray paths in the Earth's crust
is interpreted as the effects of stress-aligned fluid-filled cracks, microcracks, and …

Thirteen natural rock profiles (Barton and Choubey, 1977) are analyzed for their fractal
properties. Most of the profiles were found to approximate fractal curves but some also …

A 2.5 km deep triaxial seismometer at Cajon Pass in southern California has recorded
several hundred earthquakes< ML4. 0 occurring within the San Andreas fault system. At 2.5 …

Numerical simulations of earthquake failure sequences along a discrete cellular fault zone
are performed for a three‐dimensional (3‐D) model representing approximately the central …

Numerical simulations of slip instabilities on a vertical strike‐slip fault in an elastic half‐
space are performed for various models belonging to two different categories. The first …

In the last decade a New Geophysics has been proposed, whereby the crust and
uppermost~ 400 km of the mantle of the Earth are so pervaded by closely‐spaced stress …

This paper introduces a model of rock deformation (anisotropic poro-elasticity or APE),
where the response of fluid-saturated rock to changing conditions, prior to fracturing, can be …

Sonic-log measurements provide detailed 1-D information on the distribution of elastic
properties within the upper crystalline crust at scales from about one metre to several …