A magnitude 4.1 earthquake occurred near Christchurch on Thursday morning.
Geonet says it was 15km deep and centred 20km north-east of the city, at 5.21am.
There are no reports of any new damage.
A magnitude 3.1 quake occurred at 6.34pm on Wednesday. It was 10km east of the city, at a depth of 15km.
