No worries. The shifting of the Earth's magnetic poles is not a harbinger of the Apocalypse. The magnetic poles have even swapped places several time since the Earth was formed.
Of course, there are already some scaremongers out there who will try to convince you otherwise, but they seem to be the type of people for whom Civilization As We Know It is always on the brink of destruction.
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The mere fact that science may not yet adequately explain an object, event, or experience does not mean the immediate explanation should automatically default to a conspiratorial, extraterrestrial, paranormal, or supernatural cause.