Search for Christchurch earthquake survivors - in pictures

Rescuers stand at the smoking ruins of the Canterbury Television building where dozens of students and staff are feared dead Photograph: MARTY MELVILLE/AFP

A body is carried out from the destroyed Canterbury Television building Photograph: Sarah Ivey/AP

Piles of rubble lie outside Christchurch's Cathedral of Blessed Sacrament Photograph: Simon Baker/Reuters

The Grand Chancellor Hotel which is listing and expected to collapse Photograph: Simon Baker/Reuters

A damaged car in Cathedral Square Photograph: Hannah Johnston/Getty Images

A Japanese rescue worker with a working dog walks past the rubble of the Canterbury Television building Photograph: Tim Wimborne/Reuters

Engineers and building inspectors gather for a briefing Photograph: Hannah Johnston/Getty Images

Tony Christie stands by rubble in what was his backyard in the suburb of Sumner Photograph: Mark Baker/AP

Damaged caused to a house and lawn near Lyttleton by a falling boulder Photograph: Mark Baker/AP

A Lyttelton resident, Graeme Gordon, with one of the boulders that rolled down from the Port hills and destroyed his property Photograph: Stuart McEvoy/Newspix/Rex Features

A home stands on the edge of a landslide in Redcliffs, near Christchurch Photograph: Torsten Blackwood/AFP

A worker stands by the remains of the Canterbury Television building Photograph: Hannah Johnston/Getty Images

A suburban street is covered with silt forced out of the ground during the earthquake by a liquefaction process Photograph: Torsten Blackwood/AFP

A distraught couple console each other after a relative was buried under the rubble when the CTV building collapsed in Christchurch's CBD Photograph: Brett Phibbs/Newspix/Rex Features

Local residents have a free dinner cooked by neighbours in their backyard in the suburb of New Brighton Photograph: Cameron Spencer/Getty Images

Recovery workers are lowered by crane on to the top of Christchurch Cathedral Photograph: Rob Griffith/AP

Residents clear mud and silt from their property in a suburb of Christchurch Photograph: Mark Baker/AP

The damage to the Timeball Station building on the hill above Lyttelton township Photograph: Sarah Ivey/Newspix/Rex Features

The inside of David's Bookstore on Cashel Street in Christchurch Photograph: Hannah Johnston/Getty Images