A magnitude 4.1 earthquake shook Christchurch early on Tuesday.
The quake occurred at 3.38am and was centred 20km north-east of Lyttelton at a shallow depth of 10km.
A magnitude 4.1 earthquake shook Christchurch early on Tuesday.
The quake occurred at 3.38am and was centred 20km north-east of Lyttelton at a shallow depth of 10km.