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1 March, 03:21

How often do the earth's magnetic poles switch?

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  1. 1 March, 03:30
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    Reversals are the rule, not the exception. Earth has settled in the last 20 million years into a pattern of a pole reversal about every 200,000 to 300,000 years, although it has been more than twice that long since the last reversal.
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