7.3-magnitude earthquake hits coast off Japan's Fukushima prefecture

A 7.3-magnitude earthquake hit eastern Japan on Wednesday, cutting power to millions of homes and leading to a tsunami advisory being issued around the Fukushima prefecture, where a 2011 quake caused a disaster at a nuclear power plant.

Japanese Prime Minister Fumio Kishida later said "no abnormalities" had been detected at any of the country's nuclear plants. A bullet train derailed near Fukushima as a result of the earthquake but no injuries were reported, he said at a press conference.

People injured from the quake have been taken to the hospital in Fukushima's Soma city, Kyodo News agency reported, without specifying the number of people injured. Power has been restored in all of Tokyo, Tokyo Electric Power said.