Alistair Hamilton is the Canterbury Medical Officer of Health.
Christchurch Mayor Bob Parker says that this earthquake felt as violent as the one in September.
Jane Patterson has been at the Beehive bunker getting a civil defence update.
Jim Palmer is the CEO of the Waimakariri District Council.
Hewitt Humphrey summarises news of the Canterbury Earthquake.
David Miller is from Christchurch Civil Defence.
The mayor of Christchurch has declared a local state of emergency.
Barry Saunders is at the epicentre of the earthquake - Lyttleton.
Labour Party leader Phil Goff is outside the Pyne Gould building - where people are trapped inside.
James Thompson is the Operations Manager for Civil Defence Christchurch.
Bridget Mills is in Latimer Square at a triage centre.
Dave Cliff is the Police Superintendent.
Hewitt Humphrey summarises news of the Canterbury Earthquake.
John Townend is a seismologist for GNS; and an Associate Professor at the School of Geography, Environment and Earth Sciences.
Update of the Canterbury Earthquake.
Denise Torrey is the principal of Summerfield School in the south of Christchurch.
John Carter, Minister for Civil Defence gives reporters in Wellington a briefing.
Thousands of people are being evacuated from the Christchurch city centre with Civil Defence officials saying its simply too dangerous for residents to stay there.
Topics, the Christchurch earthquake including live updates from Barry Corbett and Sue Wells in Christchurch and live aftershocks.
Around a hundred million dollars has been earmarked by Cabinet as its initial contribution to Canterbury following the earthquake, but the Prime MInister says the final bill will be far higher.
The homes in the cul-de-sac Seabreeze Close are no more than just three or four years old but the land they were built on liquified during the earthquake and sent masses of mud and silt through the houses.
The Cabinet has decided to make an initial 5-million-dollar contribution to the Christchurch mayoral fund set up to help with the earthquake clean up.
Army takes control of central Christchurch, Cabinet earmarks money for Canterbury quake, More on the damage from the Christchurch earthquake, Heavy rain causes flooding in lower North Island and Fox Glacier crash report could take two years.
How long does it take to form a first impression of someone, speeding cops, Bob Parker's profile and the Canterbury earthquake, and the latest on Pike River.
The Christchurch Mayor, Bob Parker has hit back at a Civil Defence report that says his constant media presence after the earthquake created an artificial air of crisis.
A Civil Defence report looking at the aftermath of September's earthquake has reignited tensions between the Christchurch Mayor, Bob Parker, and the Canterbury regional council.
The founders of a post-quake farmers market in Christchurch have taken the idea to Kaikoura, and has set up shop in the earthquake hit town.
Firms can expect to pay more and wait longer to get goods delivered to their door following the North Canterbury earthquakes.
Two Kaikoura residents have been airlifted to Christchurch for medical treatment following the earthquake. Health Minister Jonathan Coleman says health services are managing.
Those repairing an earthquake damaged cliff in Christchurch have had to wrangle with home owners who don't want to sell, and relocating a rare flightless moth. Rachel Graham reports.