An earthquake with a magnitude of 6.3 struck off Japan's western prefecture Ishikawa on Friday, authorities said.
No tsunami warning was issued after the quake, public broadcaster NHK said.
No abnormalities were reported at the Shika nuclear power plant located in Ishikawa prefecture, as well as at the Kashiwazaki-Kariwa plant in neighbouring prefecture of Niigata, broadcaster NTV and Kyodo news agency said.


Russian attack on Ukraine's Odesa region killed two people, injured three
Duterte was 'pivotal' in murder of thousands, ICC prosecutors say
Powerful winter storm shuts schools, disrupts travel across US Northeast
At least 19 killed in Nepal bus crash
Human rights are under assault, says UN Secretary General
