Coda Q : A parameter characterizing the amplitude decay of S-coda of a local earthquake with the lapse time defined by Aki and Chouet (1975) assuming single S to S scattering. The coda lasts longer for higher coda Q
Peter Bormann, Keiiti Aki, William H. K. Lee, and Johannes Schweitzer (Compilers and Amenders), Glossary of Terms Interest to Earthquake and Engineering Seismologists (Version 1), Publication records from external use of GFZ scientific infrastructure, Germany 2011. http://gfzpublic.gfz-potsdam.de/pubman/item/escido c:56137:3/component/escidoc:56143/Glossary_rev1.pd f, (ND/ Erthq - Amer) {980}