Earthquakes and geological discovery.

Includes bibliographical references and index

Describes how and why scientists trace seismic activity and measure the extent and patterns of seismic waves. Through analysis of numerous earthquakes, both historical and present, it is illustrated that basic geological lessons are learned in almost every occurrence of these highly varied events. In addition, it is shown how seismographic data are used to mitigate the risk of future earthquakes by incorporating the latest theoretical models, technologies, and techniques (including man-made earthquakes). Describes the three-pronged effort to predict the occurrence of earthquakes - the search for warning signs, the review of patterns of past occurrences, and the measurement of the strain on faults. Concludes by focusing on the crucial challenge of predicting the intensity of ground shaking, demonstrating how an understanding of seismic intensity leads to the construction of safer buildings and to other measures that reduce an earthquake's potential for destruction