Seafloor shapes on the flanks of mid-ocean ridges linked to magma supply

At nearly 65,000 kilometers long, the mid-ocean ridge system is the longest mountain range in the world. Running beneath the ocean's surface, mid-ocean ridges are formed at divergent plate boundaries, where tectonic plates stretch apart and magma rises to create new crust on the ocean's floor. The rift along the axis of the mid-ocean ridge system is among the most seismically active locations on Earth.