Is the Earth wobbling more than usual? This dashboard tracks the subtle shifts in our planet's spin — updated daily with official scientific data.
Data from IERS Rapid Service/Prediction Center · Updated 1/31/2026
Earth Wobble Score
6/100
Earth's wobble looks perfectly normal right now.
The wandering path of Earth's spin axis over the last 2 years. This is the Chandler wobble in action.
Imagine looking down at the North Pole from space and tracking the exact point the Earth spins around. It traces a spiral pattern — this is the Chandler wobble, a natural ~14-month cycle. A tight, regular spiral = normal. If it gets erratic or starts drifting in a new direction, that could be noteworthy. The red dots show dates along the path.
Daily Wobble Change
1.3 mas/day
How much the spin axis moved in the last day. Think of it like the tip of a spinning top drifting — under 5 is calm, over 15 is unusual.
North-South Drift
91 mas
How far the axis has drifted in the north-south direction. Measured in milliarcseconds — tiny fractions of a degree.
East-West Drift
360 mas
The east-west component of the wobble. Together with North-South, this tells us where the spin axis is pointing.
Day Length Change
0.08 ms
The day is 0.08 milliseconds longer than a perfect 24 hours. Tiny, but it reveals what's happening deep inside the Earth.
How the North-South and East-West wobble have changed since 2000.
Earth doesn't spin perfectly straight — its axis wobbles slightly, like a spinning top that isn't quite balanced. The green line shows the north-south wobble and the blue line shows east-west. Smooth, wave-like patterns are normal. Sudden jumps or trend changes could be significant.
Tiny changes in how long each day lasts (in milliseconds).
A "perfect" day is exactly 86,400 seconds. But in reality, some days are a fraction of a millisecond longer or shorter — you'd never notice, but scientists can measure it precisely. These fluctuations come from things like ocean currents, wind patterns, and interactions between Earth's core and mantle. Big or sudden changes could hint at something unusual happening underground.
The gap between time based on Earth's spin and ultra-precise atomic clocks.
We have two ways to measure time: atomic clocks (perfectly steady) and Earth's rotation (slightly irregular). This chart shows the gap between them. It drifts because Earth doesn't spin at a perfectly constant rate. Gradual drift is normal and is why we occasionally add "leap seconds." A sudden change in the trend would suggest something is affecting Earth's rotation speed.
The ECDO theory (Exothermic Core-Mantle Decoupling – Dzhanibekov Oscillation) proposes that Earth's core periodically releases bursts of heat that weaken the connection between the core and the outer shell (mantle + crust). If the connection weakens enough, the outer shell could suddenly shift — like the shell of an egg rotating around the yolk inside.
The complete hypothesis with evidence and analysis by The Ethical Skeptic.
Where all this data comes from — the official scientific body that tracks Earth's orientation.
A good starting point to understand Earth's natural wobble cycle.