The Fukushima earthquake shook the seabed 50 meters.

"A group of researchers compared the way to the bottom of the sea and the depth of the Ocean before and after the phenomenon occurred on 11 March. The recorded vertical displacement was 16 m."

The earthquake last March 11 shook Japan and affected the Fukushima nuclear power shifted the seabed 50 meters horizontally and 16 meters vertically, according to a study published in the journal Science.

The researchers completed the bathymetric studies that measure the shape of the bottom of the sea and the depth of the ocean, to obtain greater knowledge of the impact of the earthquake that caused a devastating tsunami on the coast of Japan.

The study, led by Professor Toshiya Fujiwara of the Japan Agency for marine science and technology and of the Earth (JAMSTEC) in Yokosuka revealed that the impact was greater than what it had been calculated so far.

Experts compared the measurements of the bottom of the sea, before and after the earthquake, and identified the differences that occurred in its entirety with the axis of the Japan trench, where an earthquake measuring 9 on the Richter scale occurred.

The Pacific plate moves westward, hitting and getting under the continental shelf of the Okhotsk, creating tension between the tectonic plates that can cause earthquakes.

According to the study, close to the epicentre of the tremor the Okhotsk plate moved 50 meters to the East Southeast towards the Fossa marina.

In fact, they believe that this shift joined the movement upwards probably contributed to the generation of the waves of the massive tsunami that followed the earthquake.