The midocean ridge can be thought of as a 31,000- mile (49,600-kilometer) long mountain range that runs through the Atlantic, Arctic, Pacific, and Indian oceans.
They resemble mountains on land with their ruggedness and surprising height. Points of the ridge can break through the water’s surface. The island of Iceland is, in fact, a part of the midocean ridge. Ocean research has shown that the midocean ridge is continually spreading out.
Rifts sometimes intersect this string of mountains like deep valleys. These rifts, or valleys, can dive deeper than 1 mile (1.6 kilometers) below sea level. There is evidence of a lot of volcanic and earthquake activity at the bottom of these valleys.
The underwater mountain range known as the midocean ridge marks where oceanic tectonic plates meet. There, magma constantly rises from beneath the ocean floor to re-create the mountains.