According to the official determination by the China Earthquake Networks, an earthquake of magnitude 6.1 occurred in Lushan County, Ya’an City, Sichuan at 17:00 on June 1, with a focal depth of 17 kilometers and an epicenter at 30.37 degrees north latitude and 102.94 degrees east longitude.

The average altitude within 5 kilometers of the epicenter was about 1554 meters.
According to the quick report catalogue of China Earthquake Networks, a total of 123 earthquakes of magnitude 3 or above have occurred within 200 kilometers of the epicenter in the past five years. The largest earthquake is the first 50 historical earthquakes of this earthquake.
The villages within 5 kilometers of the earthquake include Dahe Village, Mupingzi, Dafoyan, Masangping, Jiguping, Heituxi, Changheping, Dengganping, Zhaojiaping, and Pingxikou. The towns within 20 kilometers are Taiping Township, Zhonglin Township, Yuquan Township, Baosheng Township, Muping Township, Shuangshi Township, Longmen Township, Lingguan Township, Wulong Township, Qingren Township.
The epicenter was 12 kilometers away from Baoxing County, 25 kilometers away from Lushan County, 37 kilometers away from Mingshan District, 38 kilometers away from Tianquan County, 42 kilometers away from Yucheng District, 41 kilometers away from Ya’an City and 113 kilometers away from Chengdu City.
Lushan County is affiliated to Ya’an City, Sichuan Province. It is located on the western edge of the Sichuan Basin and Zhou Mountains, in the upper reaches of the Qingyi River. The climate is mild with abundant rainfall. Granite, marble and other mineral resources are abundant. The county covers an area of ​​1,191 square kilometers and has 5 towns and 4 townships under its jurisdiction.