The epicentre of the quake is in mountainous border area of Wushi County in northwest China's Xinjiang region, according to the China Earthquake Administration. It struck at 2:09am (1809 GMT January 22) at a depth of 22 km (13 miles). Authorities reported dozens of aftershocks as of 8am local time.

The Xinjiang railway department immediately stopped operations and 27 trains were reportedly affected by the earthquake. Train services gradually resumed operation shortly before 7:30am local time, CCTV said.