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.
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After a mild start temperatures should pick up, with the south of England seeing highs of 26C.
In Edinburgh tonight you can hear it and feel it. The buzz, the banter of the day and the thrilling sense something big is coming tomorrow.
There is nervousness, anxiety and on the streets of Edinburgh fuelled by an atmosphere unlike anything seen before in recent UK politics.