While the Aymara language here has a mainly communicative function, the Quechua, as far as it is known, is kept for ritual purposes in versified texts and dances in the rural sector of Putre and Socoroma.
As Lehnert suggests:
"Currently, Quechua is spoken by some elders in the area of Cupo-Turi y and by some residents in Toconce and Estación San Pedro, as a result of the settling of workers at both sides of the Chilean-Bolivian boundary."

Source: The Kunza language and texts. Filology's notes. Antofagasta.

More information:

http://www-robotics.usc.edu/~barry/quechua/

http://www.unsaac.edu.pe/runasimi