Earthquakes occur along large cracks (faults) at or near the boundary between two tectonic plates. Why do some faults generate earthquakes while others move peacefully? Why are earthquakes so hard to predict?

where’s the list ? the question is incomplete

it's when something is going so fast it makes a loud noise, breaking the sound barrier, for example: a jet makes a loud noise, not only cause of the jet but because they reached a point where they went so fast that you can year the noise from various parts, kinda like a police car, lets say the car was going   so fast that you hear the siren of the cop car right next to you, but the car is probably a mile a way, it's cos the siren was next to you a few seconds if you understand me

explanation:

wheres the pic