This note presents a basic study in
seismology and the utilization of seismic waves for the study of Earth's
interior. It introduces techniques necessary for understanding of elastic wave
propagation in layered media. Topics covered includes: Stress and strain,
Relationship between stress and strain, Equation of motion, Wave equation,
d'Alembert's solution, Separation of variables, Fourier transform, Slowness,
Travel time curves, Travel time tomography, Snell's law, Critical and
post-critical reflection, Surface waves-ground roll, Normal modes, Anisotropy,
Earthquake, Focal mechanics.
Author(s): Prof.
Robert Van Der Hilst and Scott Burdick
This PDF
book Seismic imaging: a practical approach covers the following topics related
to Seismology : Introduction, Wave propagation, Refraction surveying, Seismic
tomography, Full waveform inversion, Hybrid seismic imaging, Integrated seismic
study Focus on “Cigéo”, the French geological repository project.
The main objective of this note is to
introduce the basic knowledge on earthquake engineering. This note covers the
source mechanics of earthquake, hazards and its consequences and also covers
earthquake measurement and instrumentation.
This note provides an
understanding about the basics of seismic wave propagation and methods to
determine the structure of the earth and the mechanism of an earthquake. Topics
covered includes: The elastic wave equation, Ray theory, travel time equations,
reflection/transmission coefficients, Refraction seismics, Reflection seismics,
Travel time inversion, Surface waves and normal modes, Earthquake focal
mechanisms.
This note provides an understanding about
the fundamental concepts of seismic wave propagation. Topics covered includes:
basic theorems in dynamic elasticity, representation of the seismic source and
seismic interferometry, elastic wave ropagation, wave potentials, wave
excitation from a point source, ray theory, surface waves , seismic anisotropy.
The material is based on several textbooks, monographs and journal
articles. Though the material is clearly far from well elaborated it can be
useful for students who want to learn basics of theory of seismology. Topics
covered includes: Basic Relations Of Continuum Mechanics, Seismic Source,
Methods Of Solution Of The Equation Of Motion, Elastic Waves In Unbounded
Homogeneous Isotropic Medium, Reflection And Transmission Of Plane Waves At A
Plane Interface, Surface Waves, Seismic Response Of A System Of Horizontal
Layers Over a Halfspace To A Vertically Incident Plane SH Wave, The Ray Method.