The massive earthquake has also affected the geometric axis of our planet, which could have been moved up to 17 cm.
"In theory, anything that redistributes the Earth's mass will change the Earth's rotation," Gross said. "So in principle the smaller aftershocks will also have an effect on the Earth's rotation. But since the aftershocks are smaller their effect will also be smaller."
Gross had also calculated in the past displacements of our axis and variations of our day length, following large earthquakes in Sumatra and Chile.
My question is: Does this actually happened? Do this calculation involve astronomical measures that certify the change, and if so, its magnitude? Is this earthquake strong enough to vary the angular inertia of the planet?
Any insight? Please, comment.
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