S-Wave Tomography

S-wave tomography is a technique used to create detailed 3D images of Earth's interior by analyzing how shear waves (a type of seismic wave) travel through it. When earthquakes occur, these waves move through the Earth and are recorded by seismometers. Variations in wave speed reveal differences in material properties, such as temperature and composition. By processing and combining many such measurements, scientists generate maps that show how the Earth's interior varies in structure, helping us understand processes like mantle convection and plate tectonics.