Why are transform faults perpendicular to sea ridges?

..and why are earthquakes only concentrated at the center of these transform faults? (giving rise to continuous earthquake paths)Why are transform faults perpendicular to sea ridges?
Transform faults are subparallel to the direction of plate motion away from the spreading centre. They are perpendicular to the mid ocean ridge because they have formed in response to different rates of movement away from the ridge, which results in vertical fracturing in the crust subparalle to the direction of motion.





The available literature suggests that earthquakes related to these transform faults are developed along the fault, are shallow, running as deep as 25 km, and are smaller than magnitude 8.5. I am not aware that thy are concentrated at the centre of the fault.Why are transform faults perpendicular to sea ridges?
it's a hard one to visualise





first off you have a convergent plate boundary hence the ridge, Second you have a plate/plates that is/are moving on an axis of rotation, hence convergent, subduction, and transform boundaries.





this is how you get transform faults, it is the perpendicular motion of the plates turning on an axis of rotation. The earth quakes being centralised will be due to the pattern of the fault line, friction of plates.
transform faults are the result of force being applied vertically thereby finding a reciprocal state in salt water. these are the weakest areas of plate movement and as such are the first to show earthquake effects.