Arica - The city of the eternal spring

Arica is a place of extremes:   it happens to be very close to the subduction zone known where the Nazca techtonic plate dives beneath the South American plate, threatening the city with huge earthquakes. In fact, in my past visit, someone told me that a big earthquake has been predicted for the area in the next few years.  Average rainfall per year is 0, one of the driest inhabited places on earth... and yet, near the city, there is an oasis where vegetables and olives are grown.