An earthquake measuring 5.0 on the Richter scale jolted Simao, a city in southwest China's Yunnan Province, at 0:30 Wednesday, leaving three people injured.
  
The epicenter of the quake is at 22.7 degrees north latitude and 100.8 degrees east longitude, according to China Seismological Network.
  
Three people were injured but no one was yet found dead. A batch of houses were damaged at different level.
  
The local government has quickly organized the disaster relief work.

(Xinhua News Agency January 26, 2005)