KUNMING, May 30 -- A work team of over 50 people has been sent for surveying, investigation and disaster evaluation after a 6.1-magnitude earthquake jolted a county in southwest China's Yunnan Province, local authorities said Friday.

The quake hit Yingjiang County at 9:20 a.m., according to the China Earthquake Networks Center. No casualties have been reported so far.

Tremors were strongly felt in the county seat, where local residents rushed to open areas.

Police have been sent to the township of Kachang, which is close to the epicenter, according to local publicity officials.

Yingjiang borders Myanmar, and has a population of 300,000.

Yunnan lies where the Eurasian Plate and Indian Plate meet and is prone to quakes.

A 5.6-magnitude quake hit the same region a week ago, injuring at least 13 people.

In March 2011, the county was jolted by a 5.8-magnitude quake, leaving 26 people dead and over 300 others injured.