A magnitude 4.2 earthquake struck Christchurch at 6.47pm on Sunday.
GNS Science says it was at a depth of nine kilometres and was centred 10km east of Christchurch.
A magnitude 4.2 earthquake struck Christchurch at 6.47pm on Sunday.
GNS Science says it was at a depth of nine kilometres and was centred 10km east of Christchurch.