The strong quake shook buildings in Tokyo for about a minute.
The epicenter of the quake was 590 kilometers deep near the Ogasawaras which are 1,000 kilometers south of Tokyo.
The quake had an intensity of 5 in the Ogasawaras, a 4 in Tokyo’s 23 wards as well as Ibaraki, Saitama, Tochigi, Gunma, Chiba and Kanagawa prefectures. It measured 3 in the Tohoku region and 2 in parts of Hokkaido.
There were no immediate reports of damage or casualties.
Tokyo’s subway and trains were briefly halted.