Earth's magnetic field 'weak spot' grows
This is a Canada news story, published by MailOnline, that relates primarily to SAA news.
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SAA impactsMailOnline
•'Weak spot' in Earth's magnetic field is now larger than Canada
86% Informative
The South Atlantic Anomaly ( SAA ) is a region in the magnetic field of reduced intensity over Africa and South America .
It has grown to more than 4.3 million square miles , larger than Canada .
SAA 's center has also moved 12 miles westward since 2020 , suggesting the region will continue to shift towards the eastern Pacific Ocean .
The weakening is a sign that Earth is heading to a pole reversal that happens when the north and south poles switch places.
The last time this occurred was 780,000 years ago .
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