The power of the magnitude 7.5 quake in Japan can be seen in just how much the ground moved.

It rose up by more than 4m (13ft) in places and moved sideways by over a metre.

Earthquake-prone Japan is hugely advanced in monitoring what happens when the ground shakes. That's why it can make such precise measurements.

There's a network of GPS stations dotted at strategic points right across the country. When an earthquake strikes, scientists can tell exactly how much each one has moved, showing how the landscape has buckled and shifted.

This system shows that the land moved as much as 130cm to the west after the earthquake on Monday [1 1 2024].

[www.bbc.co.uk]

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