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The importance of seismic wave research lies not only in our ability to understand and predict earthquakes and tsunamis, it also reveals information on the Earth's composition and features in much the same way as it led to the discovery of Mohorovicic's discontinuity. As our theoretical understanding of the physics behind seismic waves has grown, physical and numerical modeling have greatly advanced and now augment applied seismology for better prediction and engineering practices. This has led to some novel applications such as using artificially-induced shocks for exploration of the Earth's subsurface and seismic stimulation for increasing the productivity of oil wells. This book demonstrates the latest techniques and advances in seismic wave analysis from theoretical approach, data acquisition and interpretation, to analyses and numerical simulations, as well as research applications. A review process was conducted in cooperation with sincere support by Drs. Hiroshi Takenaka, Yoshio Murai, Jun Matsushima, and Genti Toyokuni.

Seismic waves. --- Waves, Seismic --- Elastic waves --- Volcanology & seismology

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Seismology --- Seismic waves --- Data processing. --- Waves, Seismic --- Elastic waves

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Seismic waves --- -Waves, Seismic --- Elastic waves --- Scattering --- -Scattering --- Scattering (Physics) --- GEOPHYSIQUE --- GEODYNAMIQUE --- SEISMOLOGIE

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Seismic waves --- Waves, Seismic --- Elastic waves --- Earth --- -Earth --- Mantle --- Earth (Planet) --- Mantle. --- Internal structure

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This book examines the differences between an ideal and a real description of wave propagation, where ideal means an elastic (lossless), isotropic and single-phase medium, and real means an anelastic, anisotropic and multi-phase medium. The analysis starts by introducing the relevant stress-strain relation. This relation and the equations of momentum conservation are combined to give the equation of motion. The differential formulation is written in terms of memory variables, and Biot's theory is used to describe wave propagation in porous media. For each rheology, a plane-wave analysis is per

Seismic waves. --- Wave-motion, Theory of. --- Undulatory theory --- Mechanics --- Waves, Seismic --- Elastic waves