A 5.5-magnitude earthquake hit eastern Japan on Sunday, rocking buildings in Tokyo, seismologists said.
The quake, which lasted about 30 seconds, struck at 7:38 a.m. in southern Ibaraki Prefecture, at a depth of 70 kilometers, the Japan Meteorological Agency said.
The quake registered a 4 in Tochigi, Saitama and Chiba prefectures, and in Tokyo's 23 wards, and registered a 3 in Fukushima, Gunma and Kanagawa prefectures.
The crippled Fukushima nuclear power plant was shaken by the quake but there were no abnormalities reported, the plant's operator said.
High-speed Shinkansen trains were stopped briefly for a track check, but quickly returned to normal operation.© Japan Today/AFP