The earthquake followed two very strong 7.3 and 7.4 magnitude tremors, prompting thousands to seek higher ground.
New Zealand and Australia issued tsunami warnings after a 7.7 magnitude earthquake struck the Pacific Ocean on Wednesday.
The man who murdered British backpacker Grace Millane in 2018 has been convicted of sex attacks on two other women.
New Zealand authorities filed safety violation charges on Monday against 10 organisations and three individuals after a volcanic eruption at White Island last year killed 22 people.
People voted 65% in favour of supporting an End of Life Choice Act that gives people with a terminal illness the option of requesting assisted dying.
"This case represents an unacceptable failure of the system. It should never have happened and it cannot be repeated," Prime Minister Jacinda Ardern said.