Christchurch Earthquake|Personal Report:”The Faith factor”

What is the reason for the difference in result between the Christchurch one and other earthquakes? (apart from the fact that maybe NZ has a building code in place whereas some countries do not). Jeff Crabtree made this interesting observation :”You can’t have a prosperous outcome (after a 7.1 earthquake) unless, like you, you have been singing “God Defend New Zealand” (referring to the New Zealand National anthem)