Photo taken on April 14, 2010 shows collapsed houses after an earthquake in Yushu County, northwest China's Qinghai Province. About 400 people have died and 10,000 others were injured after a 7.1-magnitude earthquake hit Yushu early on Wednesday. [Xinhua]

People walk on the ruins of collapsed houses after a quake in Yushu County, northwest China's Qinghai Province, April 14, 2010. About 400 people have died and 10,000 others were injured after a 7.1-magnitude earthquake hit Yushu early on Wednesday. [Xinhua]