According to the official measurement of China seismic network, a magnitude 6.1 earthquake occurred at 17:00 on June 1 in Lushan County, Ya'an City, Sichuan Province (30.37 degrees north latitude and 102.94 degrees east longitude), with a focal depth of 17 km. At 17:03, Baoxing County, Ya'an City (30.37 degrees north latitude, 102.92 degrees east longitude) also experienced a magnitude 4.5 earthquake with a focal depth of 18 km.
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There are about 70000 people within 20 kilometers of the epicenter, 1.17 million within 50 kilometers and 7.89 million within 100 kilometers. The epicenter was 12 kilometers from Baoxing County, 25 kilometers from Lushan County, 38 kilometers from Tianquan County, 41 kilometers from Ya'an City and 113 kilometers from Chengdu City.
