Strong magnitude 7.3 earthquake strikes northern Japan

11:15AM AEST: A TSUNAMI warning issued following a powerful earthquake off the coast of Japan has been cancelled.

According to the Japanese meteorological agency, the quake struck off the Fukushima coast at a depth of 25 kilometres around 5:59am local time.

The U.S. Geological Survey rated the quake as a magnitude 6.9, however, the Japanese agency said the quake measured 7.4 on Richter scale.


The strong tremor triggered a tsunami warning, with waves of 1.4m observed hitting the coast. The warning has since been cancelled and no major damage or injury has been reported.

8:50AM AEST: A POWERFUL earthquake off the northeast coast of Japan has triggered a tsunami.

The first waves have already been observed along Japan’s northeast coast, with a two-foot rise detected at Onahama Port in Fukushima, and a three-foot tsunami recorded at Soma.

The quake – which initially measureed 7.3 on the Richter scale – has since been downgraded to a magnitude 6.9. It struck offshore of Iwaki around 5:59am local time. A tsunami warning is still in effect.

8:15AM AEST: THERE have been no immediate reports of significant damage following the powerful earthquake off the coast of northern Japan. Scroll down for live video.

A tsunami warning remains in effect for the Fukushima coast, with destructive waves of three metres possible.

The first tsunami waves have already been observed, with a 60 centimetre rise in the water recorded along parts of coast at 6:49am local time. A higher 90 centimetre tsunami was recorded at 7:06am local time.

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BREAKING: A POWERFUL magnitude 7.3 earthquake has struck off the coast of northern Japan.

According to the U.S. Geological Survey, the quake was shallow, striking at a depth of just 10 kilometres some 67 kilometres northeast of Iwaki around 5:59am local time.

A tsunami warning is in effect. Destructive waves of three metres are expected, with Fukushima under direct threat. As a result, people along the coast are being warned to evacuate immediately.