Mark Littleton is the Chief Fire Officer in Lyttleton.
Douglas Marshall is the Civil Defence controller for the Selwyn District.
Peter Townsend is the Chief Executive of the Canterbury Chamber of Commerce. He's at Wellington Airport trying to get back to Christchurch.
Mayor of Christchurch, Bob Parker tells Cantabrians to take precautions, and declares a State of Emergency.
Radio New Zealand reporter Jessica Maddock reports from the Christchurch Central City cordon.
Radio New Zealand reporter Jessica Maddock reports from outside the Christchurch City Art Gallery which is being converted into a Civil Defence centre.
Chris Brown is in Lyttleton - the epicentre of the quake.
Bob Batty is a town planner in Halswell.
Radio New Zealand reporter Katy Gossett reports from Linwood.
Radio New Zealand Economics Correspondent reports from outside AMI Stadium.
Victoria Matthews is the Bishop of Christchurch.
John Townend is a seismologist for GNS; and an Associate Professor at the School of Geography, Environment and Earth Sciences.
Megan Hazeldean runs the Akaroa Cottages in Banks Pennisula.
Pip Ramby was rescued from the top floor of the Canterbury televison building.
Finance Minister Bill English, and the Civil Defence Minister John Carter have a news conference at the Beehive theatrette.
Murray Sherwan is the Chair of the Canterbury Earthquake Recovery Commission.
St John's Ambulance Operations Director Micheal Brooks.
Paul Burns is the task force leader of Urban Search and Rescue.
The NZ dollar has tumbled and the stock market has fallen.
Amanda Cropp is a Sumner resident.
John Carter is the Minister of Civil Defence.
Bridget Mills is in the Christchurch central city with one of the rescue teams.
Wayne Mapp is the Minister of Defence.
David Neal is the national programmes manager for the Red Cross. The Christchurch Red Cross response team is out with the fire service, searching buildings for people who might be trapped.
Radio New Zealand reporter Jessica Maddock reports on a briefing by Mayor Bob Parker.
John Townend is a seismologist for GNS; and an Associate Professor at the School of Geography, Environment and Earth Sciences.
Prime Minister John Key updates the death toll.
Mark Watts works for Telecom.
Rob Clark was on the sixth floor of his office building when the quake struck, and got stuck in gridlock leaving the CBD.
The head of the Christchurch cathedral thinks people visiting the church may have been killed there when the quake hit this afternoon. The Dean of Christchurch, Peter Beck, says they rushed to get as many people out of the Cathedral as they could.