Tokyo, May 10 : A strong 6.3-magnitude earthquake struck off the coast of southern Japan on Friday at 8.48 am local time. The initial quake was followed by another, of 5.1 magnitude, at 9.07am in the same area, according to USGS.
The epicentre of the temblor was situated 44 km east southeast of Miyazaki-shi.
No tsunami warning was issued and there were no immediate reports of damage.
The quake struck at a shallow depth of 24km near the epicentre off the coast of Miyazaki, a city in the southwest of Kyushu island, the meteorological agency said.
The 8:48 a.m. quake measured a lower 5 on the Japanese seismic intensity scale to 7 in Miyazaki and Miyakonojo, Miyazaki Prefecture, and registered a 4 in many locations in Miyazaki, Kumamoto, Oita and Kagoshima prefectures, the Meteorological Agency said.