It may not seem like much, if even true, but I read somewhere that it may affect GPS signals and space craft communications, as these things rely on very precise measurements.
“it is still important to understand how the rotation of the planet changes. “It helps us figure out where a spacecraft is and to navigate it for a precise pinpoint [extraterrestrial] landing,” he said, noting JPL conducted a similar study following 2004’s 9.1-magnitude earthquake in Indonesia.”
http://www.eweek.com/c/a/Midmarket/Earthquake-in-Chile-Shortened-Day-Shifted-Axis-NASA-Says-397735/
It did affect GPS