Uploaded May 2025 | Updated September 2026, 3 weeks ago
For Earth, an increase in rotational speed by even half a second is an enormous shift—far more significant than for a bus full of people.
What is causing this change in Earth’s rotational speed? On this point, I agree with specialists who have noted that changes in the core’s moment of inertia are what explain the acceleration of Earth’s rotation.
It is changes in the Earth’s core that govern the planet’s rotational speed. Why am I bringing this up now? Because you must also understand that acceleration and deceleration of Earth’s rotation cause physical oscillations within the magma. The inertial speeding up and slowing down of the liquid core leads the additional heat release and increases mantle vibrations.
This pulsating magma pressure transmits oscillations to the crust, intensifying its heating and structural weakening.
This explains the daily fluctuations in seismic activity—brief lulls followed by renewed surges in earthquake frequency. Core instability, its oscillations, and the accumulation of energy within the crust all contribute to rising internal tension. Over time, this tension reaches a critical threshold—and then major earthquakes occur.
For Earth, an increase in rotational speed by even half a second is an enormous shift—far more significant than for a bus full of people.
What is causing this change in Earth’s rotational speed? On this point, I agree with specialists who have noted that changes in the core’s moment of inertia are what explain the acceleration of Earth’s rotation.
It is changes in the Earth’s core that govern the planet’s rotational speed. Why am I bringing this up now? Because you must also understand that acceleration and deceleration of Earth’s rotation cause physical oscillations within the magma. The inertial speeding up and slowing down of the liquid core leads the additional heat release and increases mantle vibrations.
This pulsating magma pressure transmits oscillations to the crust, intensifying its heating and structural weakening.
This explains the daily fluctuations in seismic activity—brief lulls followed by renewed surges in earthquake frequency. Core instability, its oscillations, and the accumulation of energy within the crust all contribute to rising internal tension. Over time, this tension reaches a critical threshold—and then major earthquakes occur.
