A model for the attenuation of high-frequency (1--8 Hz) P waves is developed for paths from eastern Kazakhstan to arrays in Scotland (EKA), Canada (YKA), India (GBA), and Australia (WRA). The attenuation model includes contributions from both intrinsic absorption and scattering. Distinction between the two is especially important for forward modeling because the dispersion is quite different. However, no satisfactory complex operator for representing the scattering attenuation appears to be available at present. Attenuation consistent with an absorption band model dominates at low frequencies and is strongly dependent on frequency in this band. Attenuation that appears to be due to scattering has an important effect above 2.5 Hz and dominates at high frequency. It can be represented by a constant effective Q-1, or by Q-1∝ f. The details of the best fitting model depend on which of these is chosen and on the value of t@B|0 (travel time/Q ratio at long period) which is poorly constrained by these data. The general conclusion is that the intrinsic attenuation can be represented by an absorption band model with 0.04≤&tgr;m≤0.1, while 0.5≤t*0≤1.0. Superimposed on this is scattering attenuation, which can be represented by a constant t* of about 0.1 s or by t*=Af, with A about 0.01. Some differences are seen among the four paths, with the greatest attenuation in the 1--3 Hz band seen at YKA and the least at EKA. Above 3 Hz the attenuation effects are essentially identical for all four paths.