S-Wave 3 : The secondary, or shear, seismic wave, traveling more slowly than the P wave, and consisting of elastic vibrations that are transverse to the direction of travel. It can not travel in a fluid
Georgia Emergency Management Agency, Emergency Manager's Guide to Earthquakes in Georgia, Glossary of Earthquake Terms, Prepared by: Leland Timothy Long (School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta) for Georgia Emergency Management Agency, Georgia, USA 1999. http://quake.eas.gatech.edu/EMguide/EMguide.htm, (ND/ Erthq - Amer) {76}