A powerful earthquake rocked China’s Gansu and Qinghai provinces killing over 111 people and leaving over 200 injured, said the officials on Tuesday. A magnitude 6.2 earthquake hit a mountainous region in northwestern China, the country’s state media reported.A powerful earthquake rocked China’s Gansu and Qinghai provinces killing over 111 people and leaving over 200 injured, said the officials on Tuesday. A magnitude 6.2 earthquake hit a mountainous region in northwestern China, the country’s state media reported.