Disaster Management. The reduction in amplitude of a seismic wave or oscillator due to friction and (or) the internal absorption of energy by matter. See: Geometrical Attenuation
Montana Bureau of Mines and Geology (MBMG), Earthquake Studies Office, Glossary of Earthquake Terms, MT, USA 2012. http://mbmgquake.mtech.edu/glossary.html, (ND/ Erthq - Amer) {136}