There were no immediate reports of damage after northern Japan was hit by an earthquake which the Japan Meteorological Agency said had a preliminary magnitude of 6.8.
The epicenter of the quake was in the Pacific Ocean off the coast of northern Japan, the agency said, adding that a tsunami warning for a wave with an estimated height of 50 cm had been issued.
On March 11, 2011, the country's northeast coast was struck by a magnitude 9 quake, the strongest in Japan on record, and a massive tsunami, which triggered the world's worst nuclear crisis in 25 years since Chernobyl. The disaster left up to 23,000 dead or missing.
The epicenter of the quake was in the Pacific Ocean off the coast of northern Japan, the agency said, adding that a tsunami warning for a wave with an estimated height of 50 cm had been issued.
On March 11, 2011, the country's northeast coast was struck by a magnitude 9 quake, the strongest in Japan on record, and a massive tsunami, which triggered the world's worst nuclear crisis in 25 years since Chernobyl. The disaster left up to 23,000 dead or missing.
