Japan public broadcaster NHK has shown footage of buildings shaking in Sendai as the 7.3 earthquake hit.
The shocks, from the quake centred off the coast of northeastern Japan, were felt as far away as Tokyo.
More top news
Public sector organisations will have to publish information on any gender pay gap from Friday, in a bid to tackle discrimination.
Remarkably mild night for March
President Trump is cutting funding to cities that shelter illegal immigrants, but some are fighting back.