Two earthquakes measuring 5.6 and 6.3 on the Richter Scale hit off the coast of southern Japan on Friday, the United States Geological Survey (USGS) said.The first quake of magnitude 5.6 took place at 10:43 pm (UTC) or 7:43 am (JST) and hit a depth of 35 km, according to USGS.The epicentre of the temblor was situated 44 km east southeast of Miyazaki-shi.About an hour later, another earthquake of magnitude 6.3 was recorded at the same place.The temblor was recorded at 11:48 pm (UTC) or 8:48 am (JST) and hit a depth of 24 km, the USGS said.The epicentre of the quake was situated 37 km east southeast of Miyazaki-shi.There were no reports of any casualties, injuries or damage to property. No tsunami warning has been issued.Japan is prone to frequent earthquakes and lies in the "Ring of Fire", an area in the basin of the Pacific Ocean, which is vulnerable to frequent earthquakes and volcanic eruptions.In 2011, Japan was hit by a 9.0 magnitude earthquake triggering powerful tsunami waves ...
