Volunteers walk down through the rubble of collapsed houses after spending the day searching for earthquake victims at Longtoushan, in China's southwest Yunnan province on August 6, 2014. The death toll from an earthquake that devastated a remote region of China jumped to nearly 600 people, authorities said, as volunteer rescuers were warned away.  AFP PHOTO/Greg BAKER        (Photo credit should read GREG BAKER/AFP via Getty Images)