An earthquake measuring 6.8 on the Richter scale struck central Chile on Sunday, country's national emergency agency said.The epicentre of the quake, which occurred at around 3:57 (UTC), was registered at a depth of 9.8 kilometres, about 67 kilometres west of the city of Constitucion, reported Sputnik news agency.There were no immediate reports of casualty or damage to the property as a result of the quake.Chile lies in the 'Ring of Fire', an area in the basin of the Pacific Ocean, which is vulnerable to frequent earthquakes and volcanic eruptions.
