According to an official determination by the China Earthquake Networks Center, a magnitude 3.6 earthquake occurred at 22:50 on July 29 in Longyang District, Baoshan City, Yunnan Province (25.41 degrees north latitude, 99.25 degrees east longitude), with a focal depth of 10 kilometers.

After the earthquake, netizens in Longyang District, Longling County and other places in Baoshan City reported feeling the tremor.

Longyang, known as Yongchang in ancient times, carries the meaning of "everlasting prosperity and flourishing growth." Located in western Yunnan Province, it is the seat of the Baoshan municipal government and is one of the earlier-developed areas in Yunnan's history as well as a key border town through the ages.