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Seismology is an important branch of earth science and geophysics, providing most of our kwledge of the structure of the Earth and is used in investigations of the sub-surface, being essential in the modern exploration for oil and gas, an area In which most seismotegists are employed. The study of earthquakes is a fascinating subject both for the professional and the fayperson, and has increasing importance as populations expand and spread. Seismology continues to grow and become more sophisticated with the development of better instruments and surveys, and the impact of the computer. Providing an introduction to the subject, this volume looks at general seismology, seismic waves, earthquakes and their effects, the structure of the Earth, and exploration seismology, in particular hydrocarbon exploration. This highly illustrated book includes a survey of principles and applications with a n-mathematical approach, together with an historical section and a large reference list. Suitable for students, geologists, geophysicists, and the layperson, this volume provides an up-to-date overview of general and exploration seismology.