Photo taken with a mobile phone shows rescuers work in quake-hit Meichuan town of Minxian county, Northwest China's Gansu Province, July 22, 2013. A 6.6-magnitude earthquake jolted a juncture region of Minxian County and Zhangxian County in Dingxi City Monday morning. (Xinhua)

Photo taken with a mobile phone shows rescuers work in quake-hit Meichuan Town of Minxian County, northwest China's Gansu Province, July 22, 2013. A 6.6-magnitude earthquake jolted a juncture region of Minxian County and Zhangxian County in Dingxi City Monday morning. (Xinhua)