'This heavily revised and updated edition of Principles of Seismology contains brand new chapters on Earthquakes and modern seismic Instrumentation. It also gives a detailed historical development on various aspects of seismology with many text and website references. An essential addition to one's library of seismology textbooks.' Shamita Das, University of Oxford
1. Seismology. The science of earthquakes; 2. Earthquakes, Earth's structure and dynamics; 3. Instrumentation and digital data processing; 4. Basic concepts and equations of an elastic medium; 5. Waves in an infinite elastic medium; 6. Reflection and refraction; 7. Body wave propagation in layered media; 8. Ray theory. Media of constant velocity; 9. Ray theory media of variable velocity; 10. Ray theory spherical media; 11. Travel times and the structure of the Earth; 12. Surface waves; 13. Wave dispersion. Phase and group velocities; 14. Free oscillations of the Earth. Theory and observations; 15. Anelasticity and anisotropy; 16. Focal parameters of earthquakes; 17. Basic theory of earthquake mechanism; 18. The seismic moment tensor; 19. Simple models of fracture; 20. Methods of determination of source mechanisms; 21. Seismicity, seismotectonics, seismic risk, and prediction.