Said another way, the prime meridian adjusted by (at max deviation) 0.1km 50 years ago and hasn't been changed since.* *Though on a small scale, tectonic movem

Said another way, the prime meridian adjusted by (at max deviation) 0.1km 50 years ago and hasn't been changed since.* *Though on a small scale, tectonic movements fuzz the idea of "location" in general.