Quote (NatureNames @ 7 Nov 2013 08:15)
Want to see what 22 million horsepower looks like anchored to the ground?
http://www.youtube.com/watch?v=wbIjG82UpOs
i wonder if it changed the rotation of the earth by a tiny bit

Needs more boosters
The biggest earthquakes changes the earth rotation by a millisecond per day.
This booster blew against the ground, I guess you cant calculate a change.
chile 2010: 8.8 magnitude= 1.26 microsecond
240 megatons tnt 1 Exajoule energy