Jim Anderton announced on 6 May that he would contest the mayoralty . In becoming successful , Jim Anderton had previously stated he would not give up his Wigram electorate seat as to avoid a by-election , citing costs associated with a by-election . However , he has now stated that he would give up his parliamentary seat if elected in order to focus on Christchurch in the aftermath of the 2010 Canterbury earthquake
2010 Canterbury earthquake
2010 Canterbury earthquake
2010 Christchurch mayoral election