YUSHU, Qinghai - An earthquake measuring 5.3 on the Richter scale jolted Yushu County in northwest China's Qinghai Province at 1:35 pm Thursday, according to China Earthquake Networks Center.
No casualties have been reported, the center said on its website.
The county government of Yushu said they were investigating if damages had been done.
A Xinhua reporter in Gyegu Town said the quake was not notably felt there.
A 5.7-magnitude earthquake jolted the same location May 29 and was confirmed to be an aftershock of the 7.1-magnitude quake that struck the Tibetan county April 14, killing about 2,700 people.
Two other tremors were monitored in Yushu County Thursday, including a 3.3-magnitude quake at 1:06 pm, and a 4.3-magnitude temblor at 1:46 pm.