✔ 最佳答案
If you want the whole world feel the shaking there should have many
earthquakes happen in the same time.
But in addiction, the effectiveness of the earthquakes also depends on other
factors such as magnitude, location of the focus, time of occurance, the length of the epicenter sth etc.
And for the falling of the moon, i don't think that is possible at all.
參考: knowledge from geo.