An earthquake measuring 5.0 on the Richter scale jolted northwest China's Xinjiang Uygur Autonomous Region at 9:47 a.m. Sunday, Xinhua quoted the state earthquake authority as saying. The earthquake occurred in Xibe Autonomous County of Qapqal, 700 kilometers from the regional capital Urumqi. The epicenter was at 43.3 degrees north latitude and 80.9 degrees east longitude at a depth of 10 kilometers, the China Earthquake Administration said Sunday. The casualties are yet to be known.