officials in Japan have issued a major tsunami warning after a powerful earthquake struck areas to the north coast of the main island of Honshu .
The tremor , which according to the US Geological Survey , had a magnitude of 7.5 struck at just after 4 p.m. local time .
It happened in the Ishikawa area , close to the town of Anna Mizu .
While this camera caught the moment the earthquake happened , officials have urged people living in coastal areas to move to higher ground and we're getting reports that some major highways have been closed .
But the agency , which administers Japan's nuclear power plants , say they have not been affected .
Around 33,500 households are without power .
Russia has also issued warnings for its far eastern Sakal island and is carrying out evacuations there .
Our correspondent in the region , Jean McKenzie , is monitoring developments from Seoul in South Korea , so bring us the very latest on this .
So the major tsunami warning has been issued for the Noto region in this Isawa prefecture , so this is in central Japan on the west coast .
They are warning that waves of up to five metres high could hit that coast .
At the moment there has been waves of up to two metres , but officials are saying that those waves could get bigger .
We could see more of them .
There have also been tsunami warnings for the surrounding prefectures , so they are the prefectures of GTA and Toyama and so people living in these coastal areas have been told to evacuate immediately .
They have been told to go inland to higher ground or to go to the shelters .
People are being warned not to go to the coast , not to try and look at the damage or see what's happening that of course the first waves that hit are often not the biggest .
People are also being warned that there may be a following earthquake , a second earthquake .
There are still tremors taking place in that region in that wa prefecture .
And of course , some of the concern is partly linked to people's memories of 2011 and the Fukushima disaster .
And I understand that the chief Cabinet secretary has said that so far there are no irregularities at any nuclear power plants following the earthquake .
But presumably , as you say , that's still a concern with potential further quakes .
Yes , absolutely so there are actually five nuclear power plants in this area that has received the major tsunami warning and just the tsunami warnings .
At the moment , they are not reporting any damages or any rise in radiation levels surrounding those plants .
But of course this could change .
And so they are being monitored .
And , as you rightly say , I think many people will be thinking about that disaster .
Back in 2011 , 1 of biggest nuclear power plant disasters we have ever seen in this huge tsunami that hit Japan .
It was the biggest tsunami , earthquake and tsunami Japan had ever recorded to put it into context .
The magnitude of the earthquake today is 7.5 .
That one back in 2011 that caused that Fukushima nuclear power plant disaster was magnitude nine .
So it is a smaller earthquake that hit today , and officials are monitoring those power plants closely .
And how prepared are people ?
I mean , all those sort of is other systems kind of different from what they were then .
Japan is a country that was obviously used to a lot of earthquakes , and it has got a good warning system in place .
A good system of shelters and people are being told to seek those shelters and to go and find them now .
And so people in this area will be prepared and to know what to do .
Now , of course , it's getting dark now in Japan .
It's just gone six o'clock in the evening .
So another thing that the authorities are saying to people is , Don't try and go back to your homes when it's getting dark , stick together and get to those higher ground areas or to those shelters .
We've seen some videos on social media of some initial damage , so these are the kind of small houses that have collapsed .
We haven't seen much more at this stage , and we haven't had any reports yet of casualties or of deaths .