The Mohorovičić Discontinuity

The Mohorovičić Discontinuity, often called the Moho, is a boundary inside Earth that separates the crust from the underlying mantle. It is identified by a sudden increase in seismic wave speeds, indicating a change in rock composition and density. This boundary varies in depth, typically about 5-70 kilometers beneath the surface, depending on location. The Moho is crucial for understanding Earth's structure and helps scientists study how Earth's interior behaves and evolves. It marks the transition point where the Earth's crust, made of lighter rocks, gives way to denser mantle materials.