Why are mid-ocean ridges so much taller than the surrounding seafloor?

I'm assuming that there's a build-up of solidified magma that forms the volcano-like structure, and that it gets deeper the farther away from the ridge you go because there's only a buildup right on the ridge. But does this height also occur because of converging tectonic plates? Sort of like how mountains are formed? Thanks for your help!Why are mid-ocean ridges so much taller than the surrounding seafloor?
Convection pushing from mantle-Earths is so strong that rising lava(magma) affects itWhy are mid-ocean ridges so much taller than the surrounding seafloor?
The material upwelling at the mid-ocean ridge does indeed push up. This causes the ridge to be higher. As the spreading away from the center continues and the material gets older, it is subject to erosion and settling.





At mid-ocean ridges the tectonic plates are spreading, not converging.