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South Atlantic Anomaly 2014
South Atlantic Anomaly 2025 compared to 2014
13 OCT. 2025 publication date 5027 Views

Using 11 years of magnetic field measurements from the European Space Agency’s Swarm satellite constellation, scientists have discovered that the weak region in Earth’s magnetic field over the South Atlantic – known as the South Atlantic Anomaly – has expanded by an area nearly half the size of continental Europe since 2014.

Read full story: Swarm reveals growing weak spot in Earth’s magnetic field

Credits

ESA (Data source: Finlay, C.C. et al., 2025)

Licence

ESA Standard Licence

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