Regional variations of the intrinsic shear wave quality factor Qµ in both the upper crust and
upper mantle of continents are large, with values in old, stable cratons exceeding those in …

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 …

The structure of the earth has been extensively studied using seismic waves generated by
natural earthquakes and man-made sources. In classical seismology, the earth is …

Seismic measurements take many forms, and appear to have a universal role in the Earth
Sciences. They are the means for most easily and economically interpreting what lies …

Repeating earthquakes that rupture approximately the same fault patch and have nearly
identical waveforms are a useful tool for measuring temporal changes in wave propagation …

Azimuthally-aligned shear-wave splitting is widely observed in the Earth's crust. The splitting
is diagnostic of some form of seismic anisotropy, although the cause of this anisotropy has …

Near-surface attenuation and site effects are investigated using the seismograms of 17 local
earthquakes recorded at depths of 0, 0.3, 1.5, 2.5, and 2.9 km in the Cajon Pass borehole …

Abstract The Uttarkashi earthquake of 19 October 1991 (MS= 7.0) occurred in the greater
Himalayan region north of the main central thrust, at an estimated depth of 12 km. The fault …

We model seismic wave propagation in media with discrete distributions of fractures using
the pseudospectral method. The implementation of fractures with a vanishing width in the 2 …

Earthquake seismograms recorded by instruments in deep boreholes have low levels of
background noise and wide signal bandwidth. They have been used to extend our …