The geomagnetic poles are antipodal points where the axis of a theoretical dipole intersects the Earth's surface.

Owing to motion of fluid in the Earth's outer core, the geomagnetic poles are constantly moving.

Over several thousand years, the average location of the geomagnetic poles coincides with the geographical poles.

At random intervals (averaging several hundred thousand years) the Earth's field reverses (the north and south geomagnetic poles change places with each other).

He surmised the only explanation could be that Scotland had shifted relative to the geomagnetic pole.

It is frequently displayed on the present latitude-longitude map as a path connecting the locations of geomagnetic poles, inferred at distinct times using paleomagnetic techniques.

Also in Antarctica, near Russia's Vostok base about halfway between these two poles, is the south geomagnetic pole.

This was added to in December 1957 by another station, Vostok built inland near the south geomagnetic pole.

The dipolar part dominates the geomagnetic field and determines the direction of the geomagnetic poles.

Mostly the geomagnetic pole stays near the geographic pole, but at random intervals averaging a million years or so, the polarity of the Earth's field reverses.