Originally Posted by JonnyMark
It has gravity and it is close, so its going to do something when it passed, but it might take 1-3 days for the earthquake to happen, just a prediction =/.
It does not have enough mass, and it's not nearly close enough.
The moons mass is 7.3477 Ã— 10^22 kg and orbits Earth at a speed of 1.023 km/s. Why aren't Earths tectonic plates spinning and flying into space? Not enough mass.
For it to have any effect, it would have to fly right through the atmosphere, and then it would crash anyways.