Seismic Wave Propagation Through Earth’s Layers - Educational Diagram #91537 (License: Personal Use)

The image depicts a 3D wedge-shaped cross-section of Earth’s subsurface, revealing distinct strata-soil, sedimentary rock, metamorphic layers, and deeper crustal material-with white concentric arcs representing expanding seismic wavefronts from a central point. Rays diverge radially and bend at layer interfaces due to changes in wave velocity, demonstrating principles of refraction and Snell’s Law in seismology. The clean, color-coded design emphasizes structural stratification and wave behavior critical to interpreting seismic data.

Used in educational resources, geoscience textbooks, and online learning modules to explain earthquake mechanics, seismic tomography, and Earth’s internal structure; targets students, teachers, and professionals seeking foundational knowledge of seismology.