I don't think it has anything to do with the magnetic poles...it has to do with the universe circuits but i'm not sure if its the same pole mentioned in papers 39 and 189 here:
Quote:
When celestial beings are to be enseraphimed for transfer from one world to another, they are brought to the headquarters of the sphere and, after due registry, are inducted into the transit sleep. Meantime, the transport seraphim moves into a horizontal position immediately above the universe energy pole of the planet.........While planetary space reports are received at noon at the meridian of the designated spiritual headquarters, the transporters are dispatched from this same place at midnight. That is the most favorable time for departure and is the standard hour when not otherwise specified.
Quote:
Gabriel and the archangel hosts moved to the place of the spiritual polarity of the planet; and when Gabriel gave the signal, there flashed to the first of the system mansion worlds the voice of Gabriel, saying: “By the mandate of Michael, let the dead of a Urantia dispensation rise!”
the paragraph before the one you quoted mentions noon also:
Quote:
At noon, the day after the runaway of the twins, there occurred the initial test flash of the universe circuit signals at the planetary reception-focus of Urantia.
the noon and midnight along a meridian thing kinda rules out it being at the magnetic poles to my mind since a day there is like 6 months long and "noon" happens once at the midpoint of that