The attenution characteristics of the crust in the southernmost Tibetan plateau are determined from analysis of S-wave coda recorded at a temporary broadband station deployed during the 1994 INDEPTH-II experiment. A method for determining Qc is developed which utilizes the coda spectrogram observed at a single station. The average S-wave coda quality factor for this continent-continent collision zone is Qc(f )=(160¿69)(f/f0)1.11¿0.19, 1<(f/f0)<4, where f0=1 Hz. The results are consistent with other measurements of Qc(f ) in continental collisional environments which typically exhibit low values of Qc(f ) at 1 Hz and a strong dependence on frequency. In particular, the attenuation characteristics obtained for the Arabian-Eurasian continental collisional boundary in western Turkey are quite similar to the results reported here for the southern Tibetan plateau. ¿ American Geophysical Union 1996