The death toll from the Gansu quake has now risen to 118, with more fatalities expected as rescuers continue to comb through the rubble.
Authorities said two more people had died in Qinghai, bringing fatalities there to 13. Some 105 people have also died in Gansu, with a total of 266 injured across both provinces.
Twenty people remain missing.
Rescuers are braving freezing weather – with temperatures below -13C – to search for survivors.
The government has dispatched teams of rescue workers to assist local emergency crews.
China’s leader Xi Jinping has ordered full rescue efforts.
Power and water supplies have been disrupted in parts of the region.
A second quake has been reported in Xinjiang province.
(With inputs from BBC)
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