NEW ` We 've been through this before this once , we now need to think what we did at that time , '' he said . : Police say the 6.3-magnitude earthquake caused ` ` multiple injuries '' NEW : Large - scale evacuations of central Christchurch are under way . Christchurch : Witness ##es ` ` windows blowing out , bricks falling down , people screaming '' The city 's Catholic and Anglican churches are damaged ; Christchurch airport is closed .
NEW : Police say the 6.3-magnitude earthquake caused ` ` multiple injuries '' NEW : Large - scale evacuations of central Christchurch are under way . Christchurch : Witness ##es ` ` windows blowing out , bricks falling down , people screaming '' The city 's Catholic and Anglican churches are damaged ; Christchurch airport is closed .