An earthquake of 6 points magnitude struck
about 170 kilometres northeast of Tokyo, the US Geological Survey reported
Saturday, dpa reported.
The temblor was registered at 2151 GMT, or nearly 7 am in Japan, the report said.
It was not known if there were damages or injuries. The exact location of the
quake was at a depth of 35 kilometres about 44 kilometres south-southeast of Iwaki, on the mainland island of Honshu.