Földhullámtól

Földhullámtól is a Hungarian term that translates to "earth wave" or "ground wave" in English. It generally refers to a seismic wave or a disturbance propagating through the Earth's crust. While the term can be used in a general sense to describe any earth tremor, it is often specifically associated with the generation of seismic waves by earthquakes.

In seismology, ground waves are distinct from body waves, which travel through the Earth's interior. Ground waves, also known as surface waves, travel along the surface of the Earth. The two primary types of surface waves are Love waves and Rayleigh waves. Love waves cause horizontal shearing of the ground, while Rayleigh waves produce a retrograde elliptical motion of the ground particles, similar to waves on the surface of water.

The energy of seismic waves dissipates as they travel, and surface waves, in particular, tend to decay with depth. However, they can be responsible for significant damage to structures on the Earth's surface, especially in areas close to the epicenter of an earthquake. The amplitude and duration of ground waves are important factors in determining the intensity of earthquake shaking and the potential for destruction. The study of földhullámtól is crucial for understanding earthquake behavior and mitigating seismic hazards.