Around 1500 people are surveyed for the Christchurch market , in which 72.8 percent of the population of 365 thousand people are radio listeners . Under breakfast hosts Simon Barnett and Gary McCormick , More FM consistently leads the ratings with around 70 thousand listeners . Newstalk ZB maintains the highest market share at 15.3 percent , with nearly 56 thousand listeners . Its local news and morning programme provide a particular focus on the issues that have followed the 2010 Canterbury earthquake
2010 Canterbury earthquake
2010 Canterbury earthquake
Radio in New Zealand