A 4.2-magnitude earthquake on Saturday hit southwest China's Wenchuan County, the epicenter of the 8.0-magnitude quake in May 2008, according to the earthquake networks center of Sichuan Province.

The earthquake occurred at 5:37 AM with a depth of 12 kilometers, the center said.

Tremor was felt in Chengdu City, the provincial capital, which was about 100 km from Wenchuan. No casualties were reported.

(Xinhua News Agency February 27, 2010)