Surface waves are to blame for most of an earthquake's carnage. Ground shaking is caused by body waves and surface waves.As a generalization, the severity of ground shaking increases as magnitude increases and decreases as distance from the causative fault increases. Shock waves can be felt on the other side of the earth. The horizontal shaking of Love waves is particuly damaging to the foundations of structures. They move up and down the surface of the Earth, rocking the foundations of man-made structures.
Earthquake, any sudden shaking of the ground caused by the passage of seismic waves through Earth’s rocks. S waves literally look like waves that go up and down sort of like an ocean wave, however they are moving that fast. Surface waves in earthquakes can be divided into two types. In the greatest earthquakes the ground amplitude of the predominant P waves may be several centimetres at periods of two to five seconds.
You learned how P & S waves each shake the ground in different ways as they travel through it. Although the physics of seismic waves is complex, ground shaking can be … Displacement of the ground ranges from 10 −10 to 10 −1 metre (4 −12 to 4 inches). The layering of the rocks and the physical properties of surface soil also affect wave characteristics. P waves are also faster than S waves, and this fact is what allows us to tell where an earthquake was. The faster of these body waves is called the primary or P wave. An earthquake is what happens when two blocks of the earth suddenly slip past one another. TYPES OF EARTHQUAKE WAVES. Its motion is the same as that of a sound wave in that, as it spreads out, it alternately pushes (compresses) and pulls (dilates) the rock. So the most intense …
P- and S- waves are called "body waves" because they can travel through the interior of a body such as the Earth's inner layers, from the focus of an earthquake to distant points on the surface.
The larger the earthquake is, the bigger P waves or S waves will be. Earthquake shaking and damage is the result of three basic types of elastic waves.
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