Original: Because the Earth 's magnetic field is not exactly symmetrical , the North and South Magnetic Poles are not antipodal : a line drawn from one to the other does not pass through the centre of the Earth ; it actually misses by about 530 km ( 329.3 mi ) .
Simplified: A line drawn from one to the other does not pass through the centre of the Earth , it actually misses by about 530 km ( 329.3 mi ) .