Magnitude 60 earthquake hits off coast of Olympic Games host city Tokyo

A magnitude 6.0 earthquake has struck off the coast of Japan where the Tokyo Olympics 2020 are being held.

While there have been reports of some athletes and journalists feeling the force of the earthquake there are said to be no concerns over a tsunami.

UN NERV, who posts disaster warnings for Japan, said: "At around 5:42am, an earthquake with a magnitude of 5.6 occurred offshore Ibaraki Prefecture at a depth of 30km.

"The maximum intensity was 2. There is no threat of a tsunami."

Foreign journalists covering the games in Tokyo took to social media after tremors were felt in the city.

An international correspondent with CNN said on social media: "Earthquake in Tokyo right now. Iâ€™ve felt the shaking for about 30 seconds. Still going."

Experts say it was up to 6 on the magnitude scale ( Valery Sharifulin/TASS)

Another journalist with NBC said: "I felt what appeared to be a mild earthquake here in Tokyo. Around 5:33 am Wednesday morning here.

"Rolled for a good 20 seconds. Interestingly my crew 3 floors below me felt nothing. Japanese meteorological agency reporting 6.0 magnitude."

Mark Beretta, an Australian journalist, described the feeling of an aftershock while being live on air.

The quake caused the roof to move and lights to adjust.

Japan is situated in a seismically active zone known as the 'Ring of Fire' and regularly sees the full force of powerful earthquakes.

In 2011 a 9.0 magnitude earthquake and the tsunami that followed killed thousands of people and caused the Fukushima nuclear plant disaster.

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