The first quake, magnitude-5.7, occurred around 10.06 a.m., while the second temblor, magnitude-5.5 occurred about 30 minutes later, both in northern Tibet’s Nyainrong county, Xinhua reported.
The epicentre of the first quake was 32.4 degrees north latitude and 93.0 degrees east longitude at a depth of about eight kilometres.
The epicentre of the second quake was 32.5 degrees north latitude and 92.8 degrees east longitude at a depth of about seven kilometres.
The quakes hit a sparsely inhabited mountainous area, said Zhu Quan, director with the seismological bureau of Tibet. There was no report of casualties or damage after the quakes.