A huge 7.3-magnitude earthquake has hit Fukushima, Japan - triggering a tsunami warning as tremors were felt as far away as Tokyo. Parts of Tokyo have endured power outages as a result. It is not yet clear if any people were injured following the quake, or the scale of damage caused.
One witness posted on the ESMC website: "Two one after another. Second was the strongest. Not too bad but in this area of Northern Tokyo it seemed to go on for a couple minutes." Another wrote: "Felt very strongly in Kashima. Apartment was strongly swaying the entire time."
The tremor registered magnitude 7.3 and as high as a 6-plus on the Japanese shaking intensity scale in some areas - too strong for people to stand, according to public broadcaster NHK. The same region was hit by a major quake followed by a tsunami in 2011 that triggered the Fukushima nuclear disaster.
