4 ms·
Judging by https://upload.wikimedia.org/wikipedia/commons/6/68/IGRF_2000_magnetic_declination.gif https://upload.wikimedia.org/wikipedia/commons/6/68/IGRF_200..
by michael-ax 7y ago
Judging by https://upload.wikimedia.org/wikipedia/commons/6/68/IGRF_2000_magnetic_declination.gif https://upload.wikimedia.org/wikipedia/commons/6/68/IGRF_200... this map, it's moved about 6 degrees in the last 18 years.