The quake and tsunami hit Christchurch on December 9, 2016.
About 100,000 people were evacuated, including some who were in hospital, while hundreds of thousands more had to leave the city.
Some 1,600 homes were damaged and about 1,500 were damaged or destroyed, according to the latest figures from the Bureau of Meteorology.
In all, there were some 2,600 reported aftershocks and 662 aftershowers.
At least 11 people were killed and some 500 injured in the quake.
The death toll from the quake was likely to be higher.
The Government had warned that the city could experience a long list of aftershorts and could become “a ghost town”.
Some people still feel unsafe in the area, as the earthquakes could continue for days, the ABC reported.
In the immediate aftermath of the quake, people from all over the country rushed to the streets to give out supplies, according the ABC.
In a statement on Twitter, Christchurch Mayor Lianne Dalziel said people were urged to stay inside and not leave.
“Our hearts are broken for all those who lost their lives in this tragedy and for all of the injured,” she said.
“The City of Christchurch will not stop fighting for the safety of our residents.”
The city has since reopened, with all emergency services running.
The area is still experiencing significant damage, with the latest casualty count putting the death toll at about 1.1 million people.
The Christchurch Earthquake and Tsunami Response Team said the “significant earthquake and tsunami damage is likely to increase over time”.
It said it was monitoring the situation closely and urged people to remain in their homes and away from buildings.
The City is also preparing for a second quake.
This time it is likely that the force of the earthquake could be so strong that it will cause significant damage to buildings.