AlQa'dah 25, 1432, Oct 23, 2011, SPA -- A powerful 7.2-magnitude earthquake struck eastern Turkey on Sunday, collapsing dozens of buildings into piles of twisted steel and chunks of concrete. Desperate survivors dug into the rubble with their bare hands, trying to rescue the trapped and injured, as AP reported. State-run television reported that 45 people were killed and 150 others injured in the eastern town of Ercis, but scientists estimated that up to 1,000 people could already be dead, due to low housing standards in the area and the size of the quake. Up to 30 buildings collapsed in Ercis, including a dormitory, and 10 buildings collapsed in Van, Deputy Prime Minister Besir Atalay said.