China today fanned out army, civil defence forces and equipment into a mountainous Tibetan region to speed up the rescue efforts in the quake hit areas. The devastating quake has left a trail of destruction with over 600 deaths and more than 10,000 injuries.Xinhua reported that the toll has risen to 617.The tremor measuring 7.1-magnitude on Richter scale had hit the province in the Qinghai Tibetan plateau on Wednesday almost flattening Jiegu Township, where more than 85 per cent of the houses collapsed.Thousands of people had to spend a night without shelter in freezing temperatures.Officials said that over 1,000 people buried under the debris have been rescued by the army, police and civil defence forces.Near Jiegu Township, the epicenter of the tremor, many others are still buried under the debris of collapsed houses. Meanwhile, an earthquake measuring 4.0 on the Richter scale hit Atux City in northwest China's Xinjiang Uygur Autonomous Region early today.