  Attenuation study of a province is considered as a basic quantity for seismic
hazard assessment, ground motion simulation process and source parameter
studies. It is already established that the study of two physical processes,
first, the seismic sources and second, propagation of the waves, is essential
for seismic-hazard mapping, attenuation being one of the properties paying
importance to the latter. Here, a computational tool entitled CodaQback is
presented. Based on back scattering model, this versatile software is equipped
with user friendly graphical user interface. It also allows quick picking of
phases for computing coda attenuation parameter. All outputs after each
execution step in CodaQback are efficiently exported stepwise into a separate
folder in excel and text formats. This CodaQback is checked in real data
analysis and there is found to be good matching of computed values with already
established ones. It is envisioned that this package will enable user to derive
quick and reliable estimation of coda attenuation parameter irrespective of
geological and geo-morphological units.
