I found that the actual location of the map would be somewhere near the coordinates
23.37°S, 67.73°W
21.88°S, 68.40°W
18.42°S, 69.17°W
Those are coordinates of all the volcanoes in Arica, Atacama. Judging by the smoke plumes, I'd say it's right in between two of em.
http://maps.google.com/maps?f=d&source=s_d&saddr=&daddr=-18.475899,-70.319799&hl=en&geocode=&mra=mi&mrsp=0&sz=16&sll=-18.47562,-70.319088&sspn=0.009301,0.013797&g=-18.476021,-70.320121&ie=UTF8&t=h&z=16