Iran Press/Asia: The quake was felt in all 12 counties and cities of the prefecture, with Yangbi being the worst hit, according to Xinhua News Agency.
Two deaths were reported in Yangbi County and one in Yongping County. Three people were severely injured and 24 others had minor injuries.
About 72,317 residents in 20,192 households were affected by the quakes.
Four earthquakes over 5.0-magnitude jolted Yangbi from 9 p.m. to 11 p.m. (Beijing Time), according to the China Earthquake Networks Center.
The region has recorded 166 aftershocks as of 2 a.m.
Rescue forces have been dispatched to the quake zone, and rescue efforts are underway.
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