[gloghmalogh]

50 ft seems a little large for plate tectonics , plates move on the order of a centimeter per year [1]. (similar to fingernail growth!) [1] https://oceanservice.noaa.gov/facts/tectonics.html

[saalweachter]

I believe North America/ Australia is off by around 10 feet since GPS became a thing.

[andrewinardeer]

Australia's drift was taking into account and standards were updated back in 2020. Since 1994 the entire continent had moved 1.8 meters north-east.

https://www.icsm.gov.au/gda2020/what-changing-and-why

I'm sure the plate has drifted since the 2020 update and another update deployed when appropriate.

[shiroiushi]

The 2011 Tohoku earthquake moved Japan's main island (Honshu) by 2.4m (8ft) in 6 minutes.