New Zealand's Civil Defence Minister says hopes are fading in the search for survivors from Christchurch's quake, as the death toll edged above 100 overnight.
No one has been rescued since 3pm on Wednesday after the magnitude 6.3 aftershock struck the day before. The toll has risen from 98 to 113, while 228 are listed as missing.
"We haven't managed to find any more survivors, but our work continues. Brick by brick we are pulling buildings apart," police shift commander Russell Gibson said.
Civil Defence Minister John Carter said 10 specialist urban search rescue teams from around the world were now on the ground and operating. A final team from the United States was expected later today.
The search and rescue effort was now concentrated on alleyways and other areas where people may have been caught by falling rubble, he said.
A total of 70 people have been pulled alive from the rubble since the earthquake, he said.
"We're still hopeful of course … but it's getting less and less likely."
Mr Carter said the search and rescue effort would continue until every area had been properly investigated.
"We will just continue with the search until we are satisfied that there are no bodies left to recover."
Mr Carter said that, as far as he was aware, search and rescue workers had been able to go into all but a few highly unstable areas.
More than half of dead from CTV building
More than half of the dead have come from the ruin of the former Canterbury Television (CTV) building. An English school for foreign students had become a tomb, with more than 50 bodies pulled from the rubble and many more thought to be inside.
"Every few hours we stop and do a technical search just in case, but, being realistic, based on what we've seen so far, we're not going to be seeing anyone alive coming out of that space," fire rescue chief Jim Stuart Black said.
Police have released the names of only four of the dead, including two infants, aged five and nine months.
Australians leave Christchurch
There are no fears for any Australian caught up in the quake, although Department of Foreign Affairs and Trade (DFAT) staff were still confirming the safety of 345 people registered through the consular emergency centre.
A total of 3917 cases were registered, with 2572 Australians confirmed as safe, a DFAT spokeswoman said.
The spokeswoman said Australians without their passports should head to the airport, where immigration officials would confirm their identities.
Qantas would be flying a larger aircraft to and from Christchurch today, while consular staff would be available around the clock at Christchurch Airport and the Copthorne Commodore Hotel, the spokeswoman added.
Power has been restored to much of Christchurch, but many people remain without water. Thousands of residents, rattled by numerous tremors in recent months, have been staying with friends and relatives elsewhere.
Hundreds crowded Christchurch Airport, desperate for a flight out of the city of 390,000.
"It's crazy, nerve-wracking, my nerves are just ... I've just been shaking all day, I haven't eaten," said Vanessa Burgess, who was camped out at the terminal with her two young children.
Christchurch was hit by a 7.0-magnitude earthquake in September, which damaged 100,000 buildings but miraculously caused no deaths. New Zealand has not suffered such a disaster since 256 people died in a 1931 quake.
stuff.co.nz with agencies, Glenda Kwek
Contact DFAT's 24-hour consular emergency centre on 1300 555 135. If you are in New Zealand, phone +61 2 6261 3305.
Or you can reach the Australian high commission on +64 473 6411.
The Red Cross hotline in New Zealand for missing persons is 0800 RED CROSS (0800 733 276). If you are calling from outside New Zealand, dial +64 7 850 2199.
HOW TO DONATE
Donate to The Salvation Army:Freephone 0800 530 000; online at www.salvationarmy.org.nz; or by post: The Salvation Army, PO Box 27001, Marion Square, Wellington, 6141. Mark correspondence: "Canterbury Earthquake Appeal".
Donate to the Red Cross: http://www.redcross.org.nz/donations
Donation drive from the Auckland University Students' Association:Call (09) 309 0789 or go to Auckland University's Student Union building.
Donate via Westpac:Westpac account 03 0207 0617 331 00.
Donate via ANZ:ANZ account 01 1839 0188939 00.