Wellenbaugruppe

Wellenbaugruppe refers to a group of seismic waves that propagate through the Earth's interior. These waves are generated by earthquakes, volcanic eruptions, or artificial explosions. There are two main types of body waves: P-waves (primary waves) and S-waves (secondary waves). P-waves are compressional waves that travel fastest and can move through solids, liquids, and gases. They cause particles to move parallel to the direction of wave propagation. S-waves are shear waves that travel slower than P-waves and can only move through solids. They cause particles to move perpendicular to the direction of wave propagation. The study of these wave groups, known as seismology, is crucial for understanding the Earth's internal structure, locating seismic events, and assessing earthquake hazards. By analyzing the arrival times and characteristics of different wave groups at various seismic stations around the world, scientists can infer the composition, density, and temperature of the Earth's mantle and core. Differences in wave speeds and paths reveal discontinuities within the Earth, such as the core-mantle boundary and the inner core.