A strong earthquake shook eastern Japan on Friday evening, but there was no tsunami warning, according to public broadcaster NHK.
The temblor struck at 1003 GMT with a magnitude of 6.2, according to the Japan Meteorological Agency. It shook buildings in Tokyo as well as surrounding prefectures, but there were no immediate reports of major damage.
The epicentre was near Chiba prefecture, to the east of Tokyo, at a depth of 50 km (31 miles).
