GIS and Remote Sensing

11. Seismology and Geodesy

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Seismology is the study of earthquakes and seismic waves. Seismic waves are the waves of energy caused by the sudden breaking of rock within the earth or an explosion. They are the energy that travels through the earth and is recorded on seismographs. GIS helps to manage the impact of Earthquakes and other disasters by assessing risk and hazard locations in relation to populations, property, and natural resources, Integrating data and enabling understanding of the scope of an emergency to manage an incident and identifying staging area locations, operational branches and divisions, and other important incident management needs. Geodesy is the science of accurately measuring and understanding three fundamental properties of the earth its geometric shape, its orientation in space, and its gravity field as well as the changes of these properties with time. In relation to GIS, geodesy provides the fundamental framework for accurate positions on or near the Earth’s surface.