Strong 6.8 earthquake off Japan

A strong earthquake with a preliminary magnitude of 6.8 jolted northeastern Japan off Fukushima prefecture on Friday and a 50cm tsunami advisory was issued for the coast of Miyagi and Fukushima prefectures, the Japan Meteorological Agency said.

The tsunami advisory was issued for the coastal areas that suffered severe damage from a massive quake and tsunami in March.

The Tokyo Electric Power Co., said no abnormalities had been found at radiation monitoring posts at the crippled Fukushima Daiichi nuclear power plant and that cooling operations at the damaged reactors were continuing. (Reuters)