This unique addition to reference literature provides an introduction to the major concepts and contemporary issues that are essential for students of environmental science and environmental studies to know. With over 200 entries authored by world-class names like Anthony Brazel, John Day and Edward Keller, this text is divided into six sections: Environmental Science, Environments, Paradigms & Concepts, Processes & Dynamics, Scales & Techniques, and Environmental Issues.  



An Earthquake is defined as the natural shaking or vibrating of earth in response to the breaking and movement of rocks along faults. A fault is a fracture in rocks along which there has been differential displacement. The displacement may be vertical, horizontal or some combination of both. Most of the earthquake faults on Earth are located close to active plate boundaries, but a few that generate large earthquakes are found in the interior of tectonic plates. The coincidence of earthquakes with plate boundaries is so direct that, the mapping of the plate boundaries has been done largely through the location of earthquakes, as well as volcanoes that are found along plate boundaries (Fig. 43).

Figure 43 Earthquake belts map of the world showing the major ...

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