© NASAChristchurch City
There have been more than 7400 aftershocks in Christchurch in the 10 months since September's magnitude-7.1 quake.
They've sent people running, brought buildings down and left 181 dead.
Many people had been injured, left without water and power - and some have had to abandon their homes.
The aftershocks include the February 22 magnitude 6.3 and the 6.3 tremor which shook the city once again on June 13.
They contribute to this year's total of more than 11,000 quakes felt throughout the country.
Four earthquakes larger than magnitude 6 have already hit New Zealand this year, compared to just three occurring for all of 2010.
Two of them were in Christchurch, one was off the Coromandel coast on January 28 and the largest, a magnitude 6.5, occurred in Taupo last week and was felt throughout the country.