A 5.7-magnitude earthquake jolted the border of southwest China's Yunnan and Sichuan provinces at 3:59 p.m. Sunday (Beijing Time), said the China Earthquake Networks Center.

The epicenter, with a depth of 11 km, was located at the border area between Ninglang county of Yunnan and Yanyuan county of Sichuan at 27.7 degrees of north latitude and 100.7 degrees east longitude.

No information about casualty has been available.