An earthquake of magnitude 5.0 struck northwestern China on Wednesday. According to the National Center for Seismology, the earthquake struck the Qinghai region of the country at 15:36 IST. As of now, there were no reports of any injuries or casualties.An earthquake of magnitude 5.0 struck northwestern China on Wednesday. According to the National Center for Seismology, the earthquake struck the Qinghai region of the country at 15:36 IST. As of now, there were no reports of any injuries or casualties.