An earthquake measuring magnitude 4.5 has rocked Christchurch on Saturday afternoon.
The quake, which was recorded at 2.02pm was located 10km east of Christchurch at a depth of 8km.
There have been no reports of any damage or injuries.
The quake is the latest of a series of aftershocks to hit the city on Saturday, the biggest a magnitude 5.2 at 1.21am.
It was followed by a magnitude 3.9 quake at 1.25am.
Both were centred 20km east of the city and 10km northeast of Lyttelton. The stronger was at a depth 15km.
GNS says it would have been felt throughout the Canterbury region.
The second quake was 8km deep and would have been felt in Christchurch.
Four others on Saturday registered magnitude 3.4, 3.2, 3.6 and 3.3 and occurred at 5.03am, 5.34am, 10.42am and 7.39pm.
A magnitude 4.7 quake occurred at 8.04pm on Friday at a depth of 11km and a magnitude 5.0 quake occurred at 2.20pm.
GNS warned on Friday that aftershocks could continue for the next 30 years.
However, Dr Kelvin Berryman said the chance of a large quake near the city is beginning to recede.