How often does the Magnetic North Pole change?

mikew41

It's on the move all the time George. It's caused by the wobble of the earths axis as it spins. http://en.wikipedia.org/wiki/North_Magnetic_Pole Mar 09 09, 4:32 PM

Midget40

The North Magnetic Pole is slowly drifting across the Canadian Arctic. The Geological Survey of Canada keeps track of this motion by periodically carrying out magnetic surveys to redetermine the Pole's location. The most recent survey, completed in May, 2001, determined an updated position for the Pole and established that it is moving approximately northwest at 40 km per year. http://gsc.nrcan.gc.ca/geomag/nmp/northpole_e.php The rate of the magnetic pole's movement has increased in the last century compared with fairly steady movement in the previous four centuries At the present rate, the north magnetic pole could swing out of northern Canada into Siberia. If that happens, Alaska could lose its northern lights. http://news.bbc.co.uk/2/hi/science/nature/4520982.stm Mar 10 09, 6:02 AM

tnrees

Sometimes the north 7 south pole swap - the last time was 780,000 years ago http://www.sciencedaily.com/releases/2008/09/080926105021.htm Mar 10 09, 6:47 AM