An earthquake measuring 5.6 degrees on the Richter scale jolted a county in northwest China's Qinghai Province at 5:53 p.m. (Beijing Time) Wednesday, according to China Seismological Bureau.

The epicenter was located in a sparesly populated pasturing area on the Qinghai-Tibet Plateau at 33.0 degrees north latitude and 96.3 degrees east longitude, about 70 kilometers south to the county seat of Yushu.

The area was hit by another earthquake measuring 5.0 degrees on the Richter scale on Tuesday.

No casualties from both the quakes have been reported, according to the bureau.