Kunming -- Two earthquakes measuring 4.3 and 4.9 on the Richter scale jolted China's southwestern province of Yunnan early Friday, injuring nine people and affecting more than 100,000, local authorities said.

A 4.9-magnitude earthquake hit a village about 10 km from Ruili, a city on China-Myanmar border 4:20 a.m., the provincial seismic network reported.

The city's Communist Party chief Yang Yueguo said two villagers were seriously wounded and seven others suffered slight injuries. "It's still unclear who these people are and how they got injured," he said.

The quake destroyed the city government's old office building, Yang said. "Other damages are still under investigation."

More than 100,000 people in the city were affected, about 30,000 of whom had been evacuated to safer places. Local officials were distributing supplies to the residents, according to the notice on Ruili city's government Web site.

Another earthquake measuring 4.3 on the Richter scale jolted Yiliang County in Kunming City, the provincial capital, at 2:19 a.m. No casualties have been reported. More than 1,200 people in eight villages were affected and more than 100 houses suffered damage, local officials said.

Residents in Kunming City felt the tremble. A citizen surnamed Yang said she was waken up by the shock early in the morning.

From Aug. 20 to 21, three moderate earthquakes in Yingjiang County neighbouring Ruili City killed five people and injured more than 100.