Northern Japan has been rocked by its strongest aftershock since last month’s devastating earthquake.
The magnitude 7.1 earthquake struck late last night off the coast of Sendai.
Buildings shook in the region.
In Tokyo the quake was felt for as long as a minute.Watch movie online The Transporter Refueled (2015)
The strong aftershock cut electricity in some northern towns, including at the Onagawa nuclear plant.
Workers at the Fukushima plant were also evacuated but they have since reported no new problems.
A tsunami warning was issued along the coast but later cancelled.
Today marks four weeks since the earthquake and tsunami savaged Japan’s north.