Workers at Japan's embattled Fukushima nuclear plant were evacuated earlier on Wednesday after tsunami warnings were issued across the country.
The plant's operator said all 4,000 of its workers had been evacuated, adding that there were no "abnormalities" detected.
It comes after a massive 8.7 magnitude earthquake struck off Russia's far eastern coast, triggering warnings across the Pacific.
For many in Fukushima prefecture, the warning is likely to bring back memories of one of the worst nuclear disasters the world has seen.
In March 2011, Japan was hit by a devastating 9.0-magnitude earthquake and subsequent tsunami that went on to kill more than 18,000 people.
