Mark Littleton is the Chief Fire Officer in Lyttleton.
Major Angus Mace is from Burnham Military Camp.
Radio New Zealand reporter Katy Gossett reports from Linwood.
Megan Hazeldean runs the Akaroa Cottages in Banks Pennisula.
Elizabeth Brayton was in Charteris Bay when quake hit.
Monique Oomen is the communciations manager at Christchurch Airport.
Mark Wilson is the Principle of Cashmere High School.
Superintendent Dave Cliff is the Canterbury District Police Commander.
Michael Brook is the Operations Manager of St John.
Federated Farmers Earthquake spokesperson John Hartnell joins the programme.
Alistair Hamilton is the Canterbury Medical Officer of Health.
Chris Brown is in Lyttleton - the epicentre of the quake.
Radio New Zealand Economics Correspondent reports from outside AMI Stadium.
Radio New Zealand reporter Rachel Graham is in Latimer Square.
Peter Davy is the chief executive of Ports of Lyttleton.
Pete Connors is the New Zealand Transport Agency Operations Manager.
Christchurch city councillor Barry Corbett is at Civil Defence headquarters.
The fire service in Christhcurch says its resources are stretched.
Jim Palmer is the CEO of the Waimakariri District Council.
Barry Saunders is at the epicentre of the earthquake - Lyttleton.
James Thompson is the Operations Manager for Civil Defence Christchurch.
Bridget Mills is in Latimer Square at a triage centre.
Christchurch resident James McMullan's house was badly damaged.
Prime Minster John Key gives a statement regarding the Canterbury Earthquake.
Paul Norris is from The New Zealand Broadcasting School at CPIT.
Douglas Marshall is the Civil Defence controller for the Selwyn District.
Murray Sherwan is the Chair of the Canterbury Earthquake Recovery Commission.
The NZ dollar has tumbled and the stock market has fallen.
David Meates is Chief Executive of the Canterbury District Health Board.
Lydia Ayden is Christchurch City Council's General Manager of Public Affairs.