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400 years of Earth's magnetic North Pole wanderings 🧭 For centuries, Earth’s magnetic north pole has been slowly drifting — but in recent decades, its movement has accelerated dramatically. Historical records dating back to the early 1600s show the pole gradually migrating from the Canadian Arctic toward Siberia. For most of that time, it moved at a modest pace of about 10 miles (16 km) per year. Since the mid-20th century, however, the speed has surged — now racing at nearly 35 miles (56 km) per year. In 2017, it crossed the International Date Line, and it continues its rapid journey toward Russia. What’s driving this sudden acceleration? Deep beneath the surface, in Earth’s outer core — an immense ocean of molten iron roughly 1,800 miles (2,900 km) below our feet — swirling currents of liquid metal generate the planet’s magnetic field through dynamo action. Changes in these flows can tug the magnetic poles in new directions. Currently, the molten iron is churning more vigorously beneath Siberia than under Canada, pulling the magnetic north pole faster toward the east. Unlike the fixed geographic North Pole, the magnetic pole is never truly stationary — it can shift slightly from day to day. But the long-term trajectory, reconstructed from 400 years of data including old ship logs, compass readings, volcanic rocks, and modern satellite observations, reveals a clear and accelerating trend. Why does this matter? Compasses point to magnetic north. Rapid shifts affect: · Airport runway designations ·Smartphone compass sensors · GPS backup systems · Navigation models used worldwide · Even the migration patterns of animals like whales, birds, and sea turtles that rely on Earth’s magnetic field for orientation As the pole races onward, global navigation databases must be frequently updated to keep pace with its unpredictable sprint.