NEW DELHI: An earthquake of magnitude 5.7 on the Richter Scale hit Tibet in the early hours of Monday.The epicentre was located at latitude 29.02°N and longitude 87.48°E, at a depth of 10 kilometres, according to National Center for Seismology‘s X handle.According to the National Center for Seismology (NCS), the tremor occurred at 2:41 am IST. There are no immediate reports of casualties or significant damage.