An investigation of regional variations of coda wave attenuation in western Tibet

Regional variations of coda wave attenuation ( {Q}_{c}^{-1}) have been analyzed for western Tibet using single isotropic scattering model. A total of 628 local earthquakes, having a source-receiver distance less than 200 km recorded at the Y2 network of broadband stations during 2007–2011, are used for this analysis. All the events are crustal having maximum hypocentral depth up to 40 km. The estimation of {Q}_{c}^{-1} is made at five...