A new study has revealed that forces from the earth’s spin and subsequent shifts in Earth’s crust may trigger earthquakes and volcanic activity in Italy’s Mount Etna. Earth’s spin doesn’t always align perfectly with its north and south poles. Sometimes, the geographic poles may fluctuate due to climate change, melting ice caps or movement from tectonic plates. As the geographic poles fluctuate, the force from it distorts the earth’s crust. The study has also revealed that earthquakes may occur frequently and volcanic eruptions may eject more lava when the distance of the Earth’s spin axis to geographic north and south poles will be maximum.
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