An earthquake—measuring a magnitude of 6.0—jolted southwestern China’s Sichuan Province early  Thursday morning, according to China’s state-run media. At least three people have been confirmed dead and three others seriously injured in Lu County, where the center of the quake struck, local authorities said. Lu County, a division of Luzhou City, is located about 126 miles southeast of Sichuan’s capital Chengdu. Lu also borders China’s megacity of Chongqing. At least 57 people also sustained minor injuries, local state-run media in Sichan reported, while hundreds of houses in Lu County have collapsed. In response to the quake, provincial authorities in Suchan have activated a level 2 response, the second-highest of China’s four-tier earthquake emergency response system. The quake had a focal depth of 10 kilometers (6.2 miles), according to China’s Earthquake Networks Center. The epicenter was monitored at 29.2 degrees north latitude and 105.34 degrees east longitude. An unnamed resident in …