Local residents evacuate from the quake-hit Beichuan County in southwest China's Sichuan Province, May 16, 2008. (Xinhua Photo)

A senior citizen is evacuated from the quake-hit Yingxiu Town of Wenchuan county in southwest China's Sichuan Province, May 16, 2008. (Xinhua Photo)

Local residents evacuate from the quake-hit Beichuan County in southwest China's Sichuan Province, May 16, 2008. (Xinhua Photo)

Local residents board boats after a long trudge to evacuate from the quake-hit Yingxiu Town of Wenchuan county in southwest China's Sichuan Province, May 16, 2008. (Xinhua Photo)