A mid-ocean ridge (MOR) is a seafloor mountain system formed by plate tectonics. It typically has a depth of ~ 2,600 meters (8,500 ft) and rises about two kilometers above the deepest portion of an ocean basin. This feature is where seafloor spreading takes place along a divergent plate boundary. In the middle of the ocean, there are two divergent plate boundaries. The two boundaries stretch apart, thus leaving a gap, and allowing the magma to erupt out. This region is an earthquake zone. The elevated volcanic strip is known as the Mid Oceanic Ridge.