Irish backpackers wait for lifts to emergency shelters by police in Christchurch, New Zealand, on 23 February 2011. Christchurch was rocked by a 6.3 magnitude at 12.51 pm on 22 February laying waste to much of the city. Hundreds of people remain trapped in collapsed buildings and rubble across the CBD of the popular tourist spot. EPA/TRACEY NEARMY
Residents shelter at the Salvation Army centre at Cowles Stadium in Christchurch, New Zealand, on 23 February 2011. Christchurch was rocked by a 6.3 magnitude at 12.51 pm on 22 February laying waste to much of the city. Hundreds of people remain trapped in collapsed buildings and rubble across the CBD of the popular tourist spot. EPA/TRACEY NEARMY
Residents shelter at the Salvation Army centre at Cowles Stadium in Christchurch, New Zealand, on 23 February 2011. Christchurch was rocked by a 6.3 magnitude at 12.51 pm on 22 February laying waste to much of the city. Hundreds of people remain trapped in collapsed buildings and rubble across the CBD of the popular tourist spot. EPA/TRACEY NEARMY
Tourists shelter at the Salvation Army centre at Cowles Stadium in Christchurch, New Zealand, on 23 February 2011. Christchurch was rocked by a 6.3 magnitude at 12.51 pm on 22 February laying waste to much of the city. Hundreds of people remain trapped in collapsed buildings and rubble across the CBD of the popular tourist spot. EPA/TRACEY NEARMY
Irish backpackers are given lifts to emergency shelters by police in Christchurch, New Zealand, on 23 February 2011. Christchurch was rocked by a 6.3 magnitude at 12.51 pm on 22 February laying waste to much of the city. Hundreds of people remain trapped in collapsed buildings and rubble across the CBD of the popular tourist spot. EPA/TRACEY NEARMY
Locals and travellers left homeless by the previous day's magnitude 6.3 earthquake rest at Hagley Park Shelter in Christchurch, New Zealand, on 23 February 2011. Rescuers are working frantically to reach trapped survivors after a catastrophic earthquake left nearly 400 people dead or missing. EPA/PAM JOHNSON
(L-R) International tourists Hollis Reed from the USA, Tim Woods and Laura Smith from London, Jenny Hallebra from Sweden and Gary Allen from London left homeless by the previous day's magnitude 6.3 earthquake rest at Hagley Park Shelter in Christchurch, New Zealand, on 23 February 2011. Rescuers are working frantically to reach trapped survivors after a catastrophic earthquake left nearly 400 people dead or missing. EPA/PAM JOHNSON
Anne Kilpatrick from the United Kingdom and Ciaran Brennan from Ireland rest at the Hagley Park shelter after the previous day's magnitude 6.3 earthquake hit Christchurch, New Zealand, on 23 February 2011. Rescuers are working frantically to reach trapped survivors after a catastrophic earthquake left nearly 400 people dead or missing. EPA/PAM JOHNSON
Cars are covered by a collapsed building after a magnitude 6.3 earthquake in Christchurch, New Zealand, on 23 February 2011. Rescuers are working frantically to reach trapped survivors after a catastrophic earthquake left nearly 400 people dead or missing. EPA/PAM JOHNSON
Richard Foot, of DIY Rescue Ltd, redirected his artesian water source with the help of donated piping to Opawa Road for locals who don't have water to collect after a magnitude 6.3 earthquake hit Christchurch, New Zealand on 22 February, on 23 February 2011. Rescuers are working frantically to reach trapped survivors after a catastrophic earthquake left nearly 400 people dead or missing. EPA/DAVID ALEXANDER
An aerial photo supplied by the New Zealand Defence Force shows the destroyed Canterbury Television building in Christchurch, New Zealand, on 23 February 2011. Rescuers gave up hope of finding any survivors in the earthquake-ravaged building in Christchurch where as many as 50 people including 11 Japanese students had been trapped. A police operation commander said the Canterbury Television Building was too unsafe to continue search-and-rescue operations where survivors were unlikely to be found. Rescuers are working frantically to reach trapped survivors after a catastrophic earthquake left nearly 400 people dead or missing in Christchurch. EPA/CPL BRAD HANSON/NZDF/HO
Rescuers search for missing people amongst the collapsed buildings in the Central Business District after a magnitude 6.3 earthquake in Christchurch, New Zealand, on 23 February 2011. Rescuers are working frantically to reach trapped survivors after a catastrophic earthquake left nearly 400 people dead or missing in Christchurch. EPA/WAYNE DROUGHT
Rescuers search for missing people amongst the collapsed buildings in the Central Business District after a magnitude 6.3 earthquake in Christchurch, New Zealand, on 23 February 2011. Rescuers are working frantically to reach trapped survivors after a catastrophic earthquake left nearly 400 people dead or missing in Christchurch. EPA/WAYNE DROUGHT
Fire service workers attempt to rescue a woman trapped in a building after a magnitude 6.3 earthquake in Christchurch, New Zealand, on 23 February 2011. Rescuers are working frantically to reach trapped survivors after a catastrophic earthquake left nearly 400 people dead or missing in Christchurch. EPA/PAM JOHNSON
A fire services worker amid the rubble of the PGG building after a magnitude 6.3 earthquake in Christchurch, New Zealand, on 23 February 2011. Rescuers are working frantically to reach trapped survivors after a catastrophic earthquake left nearly 400 people dead or missing in Christchurch. EPA/PAM JOHNSON
A damaged building after a magnitude 6.3 earthquake in Christchurch, New Zealand, on 23 February 2011. Rescuers are working frantically to reach trapped survivors after a catastrophic earthquake left nearly 400 people dead or missing in Christchurch. EPA/WAYNE DROUGHT
A woman is rescued after spending a night trapped in a building that collapsed after a magnitude 6.3 earthquake in Christchurch, New Zealand, on 23 February 2011. Rescuers are working frantically to reach trapped survivors after a catastrophic earthquake left nearly 400 people dead or missing in Christchurch. EPA/WAYNE DROUGHT
A woman is rescued after spending a night trapped in a building that collapsed after a magnitude 6.3 earthquake in Christchurch, New Zealand, on 23 February 2011. Rescuers are working frantically to reach trapped survivors after a catastrophic earthquake left nearly 400 people dead or missing in Christchurch. EPA/WAYNE DROUGHT
A woman is rescued after spending a night trapped in a building that collapsed after a magnitude 6.3 earthquake in Christchurch, New Zealand, on 23 February 2011. Rescuers are working frantically to reach trapped survivors after a catastrophic earthquake left nearly 400 people dead or missing in Christchurch. EPA/WAYNE DROUGHT
Fire fighters attend to a building that collapsed after a magnitude 6.3 earthquake in Christchurch, New Zealand, on 23 February 2011. Rescuers are working frantically to reach trapped survivors after a catastrophic earthquake left nearly 400 people dead or missing in Christchurch. EPA/WAYNE DROUGHT
A man walks past a building on the corner of Lancaster Street that collapsed after a magnitude 6.3 earthquake in Christchurch, New Zealand, on 23 February 2011. Rescuers are working frantically to reach trapped survivors after a catastrophic earthquake left nearly 400 people dead or missing in Christchurch. EPA/DIANNE MANSON
A man cycles past a building on the corner of Lancaster Street that collapsed after a magnitude 6.3 earthquake in Christchurch, New Zealand, on 23 February 2011. Rescuers are working frantically to reach trapped survivors after a catastrophic earthquake left nearly 400 people dead or missing in Christchurch. EPA/DIANNE MANSON
A vehicle is seen stuck in the liquification in a street after a magnitude 6.3 earthquake in Christchurch, New Zealand, on 23 February 2011. Rescuers are working frantically to reach trapped survivors after a catastrophic earthquake left nearly 400 people dead or missing in Christchurch. EPA/DIANNE MANSON
An injured woman is carried from the rubble of a collapsed multi-level office block on Madras Street in Christchurch, New Zealand, 22 February 2011. Buildings have collapsed, leaving people trapped under rubble with reports of multiple fatalities after a 6.3-magnitude earthquake hit New Zealand's second biggest city. EPA/DAVID WETHEY
Bodies of earthquake victims lie covered in Latimer Square Christchurch, New Zealand, 22 February 2011. Buildings have collapsed, leaving people trapped under rubble with reports of multiple fatalities after a 6.3-magnitude earthquake hit New Zealand's second biggest city. EPA/DAVID WETHEY
The Christchurch Catholic Cathedral more extensively damaged after an earthquake in Christchurch, New Zealand, 22 February 2011. Buildings have collapsed, leaving people trapped under rubble with reports of multiple fatalities after a 6.3-magnitude earthquake hit New Zealand's second biggest city. EPA/DAVID WETHEY
Rescuers climb across rubble to attend to a women found alive in the the collapsed multi level office block on Madras Street to attend to a women found alive in Christchurch, New Zealand, 22 February 2011. Buildings have collapsed, leaving people trapped under rubble with reports of multiple fatalities after a 6.3-magnitude earthquake hit New Zealand's second biggest city. EPA/DAVID WETHEY
Hotel Stonehurst backpackers hotel lies wrecked in the inner city of Christchurch, New Zealand, 22 February 2011. Buildings have collapsed, leaving people trapped under rubble with reports of multiple fatalities after a 6.3-magnitude earthquake hit New Zealand's second biggest city. EPA/DAVID WETHEY
(FILES) A file picture shows Cathedral Square in Christchurch, New Zealand, July 2007. Buildings have collapsed, people are trapped under rubble and there are reports of multiple fatalities after a 6.3-magnitude earthquake hit New Zealand's second biggest city on 21 February 2011. EPA/WILL KNIGHT
(FILES) A supplied image of Christchurch's Cathedral Square moments before the lights were switched off for Earth Hour, New Zealand, March 29, 2008. Buildings have collapsed, people are trapped under rubble and there are reports of multiple fatalities after a 6.3-magnitude earthquake hit New Zealand's second biggest city on 21 February 2011. EPA/PETER MEECHAM / WWF HANDOUT
An earthquake damaged home in Christchurch, New Zealand, 22 February 2011. Buildings have collapsed, people are trapped under rubble and there are reports of multiple fatalities after a 6.3-magnitude earthquake hit New Zealand's second biggest city on 21 February. EPA/KIRSTY GRAHAM
An earthquake damaged building in Christchurch, New Zealand, 22 February 2011. Buildings have collapsed, people are trapped under rubble and there are reports of multiple fatalities after a 6.3-magnitude earthquake hit New Zealand's second biggest city on 21 February. EPA/KIRSTY GRAHAM
People trapped in an earthquake damaged building are rescued by fire service workers in Christchurch, New Zealand, 22 February 2011. Buildings have collapsed, people are trapped under rubble and there are reports of multiple fatalities after a 6.3-magnitude earthquake hit New Zealand's second biggest city on 21 February. EPA/KIRSTY GRAHAM
Earthquake damaged Armagh Street in Christchurch, New Zealand, 22 February 2011. Buildings have collapsed, people are trapped under rubble and there are reports of multiple fatalities after a 6.3-magnitude earthquake hit New Zealand's second biggest city on 21 February. EPA/KIRSTY GRAHAM
Icebergs that caved into Tasman Lake as a result of the 6.3 earthquake in Christchurch, Hermitage, New Zealand, on 22 February 2011. The New Zealand city of Christchurch has been hit by a magnitude 6.3 earthquake, the second major shake since a 7.1 quake shook the South Island city last September. New Zealand media are reporting multiple fatalities. EPA/DENIS CALLESEN
Icebergs that caved into Tasman Lake as a result of the 6.3 earthquake in Christchurch, Hermitage, New Zealand, on 22 February 2011. The New Zealand city of Christchurch has been hit by a magnitude 6.3 earthquake, the second major shake since a 7.1 quake shook the South Island city last September. New Zealand media are reporting multiple fatalities. EPA/DENIS CALLESEN
Mark Bascand of Glacier Explorers shows passengers one of the many icebergs that caved into Tasman Lake as a result of the 6.3 earthquake in Christchurch, Hermitage, New Zealand, on 22 February 2011. The New Zealand city of Christchurch has been hit by a magnitude 6.3 earthquake, the second major shake since a 7.1 quake shook the South Island city last September. New Zealand media are reporting multiple fatalities. EPA/DENIS CALLESEN
An earthquake damaged building in Christchurch, New Zealand, Tuesday, Feb. 22, 2011. The New Zealand city of Christchurch has been hit by a magnitude 6.3 earthquake, the second major shake since a 7.1 quake shook the South Island city last September. New Zealand media are reporting multiple fatalities. EPA/PAM JOHNSON
People outside the Chateau Blanc Hotel after an earthquake in Christchurch, New Zealand, Tuesday, Feb. 22, 2011. The New Zealand city of Christchurch has been hit by a magnitude 6.3 earthquake, the second major shake since a 7.1 quake shook the South Island city last September. New Zealand media are reporting multiple fatalities. EPA/PAM JOHNSON
An earthquake damaged building in Christchurch, New Zealand, Tuesday, Feb. 22, 2011. The New Zealand city of Christchurch has been hit by a magnitude 6.3 earthquake, the second major shake since a 7.1 quake shook the South Island city last September. New Zealand media are reporting multiple fatalities. EPA/PAM JOHNSON
An earthquake damaged church on Bealey Avenue in Christchurch, New Zealand, Tuesday, Feb. 22, 2011. The New Zealand city of Christchurch has been hit by a magnitude 6.3 earthquake, the second major shake since a 7.1 quake shook the South Island city last September. New Zealand media are reporting multiple fatalities. EPA/PAM JOHNSON
The earthquake damaged Carlton Hotel in Christchurch, New Zealand, Tuesday, Feb. 22, 2011. The New Zealand city of Christchurch has been hit by a magnitude 6.3 earthquake, the second major shake since a 7.1 quake shook the South Island city last September. New Zealand media are reporting multiple fatalities. EPA/PAM JOHNSON
