What are the distinguishing features of an “artificial seismic wave” (e.g. a large underground explosion)Earth science
Asked by: Shannon Young
What are the 4 characteristics of seismic waves?
Love Waves—surface waves that move parallel to the Earth’s surface and perpendicular to the direction of wave propagation..
- P-wave Motion. P-wave:the primary body wave; the first seismic wave detected by seismographs; able to move through both liquid and solid rock. …
- S-wave Motion. …
- Rayleigh-wave Motion. …
- Love-wave Motion.
What are the characteristics of a surface seismic wave?
As their name suggests, surface waves travel just below the surface of the ground. Although they move even more slowly than S-waves, they can be much larger in amplitude and are often the most destructive type of seismic wave.
What are the 3 types of seismic waves differentiate each?
There are three major kinds of seismic waves: P, S, and surface waves. P and S waves together are sometimes called body waves because they can travel through the body of the earth, and are not trapped near the surface. A P wave is a sound wave traveling through rock.
How are seismic waves used to distinguish Earth’s interior layers?
Seismic waves tell us that the Earth’s interior consists of a series of concentric shells, with a thin outer crust, a mantle, a liquid outer core, and a solid inner core. P waves, meaning primary waves, travel fastest and thus arrive first at seismic stations. The S, or secondary, waves arrive after the P waves.
What are the characteristics of seismic waves in terms of speed?
They typically travel at speeds between ~1 and ~14 km/sec. The slower values corresponds to a P-wave traveling in water, the higher number represents the P-wave speed near the base of Earth’s mantle.
What type of seismic waves is considered as the first signal for an earthquake to be felt?
A P wave (primary wave or pressure wave) is one of the two main types of elastic body waves, called seismic waves in seismology. P waves travel faster than other seismic waves and hence are the first signal from an earthquake to arrive at any affected location or at a seismograph.
Why can seismic waves be used to determine structures and materials within the Earth?
Answer 1: Seismic waves, the waves of energy that travel through the Earth as a result of an earthquake can tell us a lot about the internal structure of the Earth because these waves travel at different speeds in different materials.
Which of the three basic types of seismic wave is likely to cause the greatest destruction to buildings?
Solution. The type of seismic wave which inflicts the greatest damage and destruction to buildings and property is a surface wave. Surface waves travel along the Earth’s surface and have the strongest vibration which results in causing the highest level of destruction.
Which of the following are true for seismic waves?
The following are true for seismic waves: Body waves travel within and through Earth.
What are the differences between the types of waves?
Waves come in two kinds, longitudinal and transverse. Transverse waves are like those on water, with the surface going up and down, and longitudinal waves are like of those of sound, consisting of alternating compressions and rarefactions in a medium.
What are the two fundamentally different types of seismic waves?
There are two broad classes of seismic waves: body waves and surface waves. Body waves travel within the body of Earth. They include P, or primary, waves and S, or secondary, waves.
What are the 3 main types of waves?
Based on the orientation of particle motion and direction of energy, there are three categories: Mechanical waves. Electromagnetic waves. Matter waves.
How do you describe seismic waves?
A seismic wave is an elastic wave generated by an impulse such as an earthquake or an explosion. Seismic waves may travel either along or near the earth’s surface (Rayleigh and Love waves) or through the earth’s interior (P and S waves).
What type of seismic waves are responsible for a destructive earthquake?
Seismic waves can be classified into two basic types: body waves which travel through the Earth and surface waves, which travel along the Earth’s surface. Those waves that are the most destructive are the surface waves which generally have the strongest vibration.
What is the main cause of seismic waves?
Seismic waves are caused by the sudden movement of materials within the Earth, such as slip along a fault during an earthquake. Volcanic eruptions, explosions, landslides, avalanches, and even rushing rivers can also cause seismic waves.
What are the importance of seismic waves?
The importance of seismic wave research lies not only in our ability to understand and predict earthquakes and tsunamis, it also reveals information on the Earth’s composition and features in much the same way as it led to the discovery of Mohorovicic’s discontinuity.
What are body waves in an earthquake?
A body wave is a seismic wave that moves through the interior of the earth, as opposed to surface waves that travel near the earth’s surface.
What do you call the point of origin of an earthquake?
The location below the earth’s surface where the earthquake starts is called the hypocenter, and the location directly above it on the surface of the earth is called the epicenter.
What do you call the small tremors that take place before an earthquake?
“Foreshock” and “aftershock” are relative terms. Foreshocks are earthquakes that precede larger earthquakes in the same location.
Which type of earthquake is caused by a sudden movement of rocks or the movement of tectonic plates?
The most common are tectonic earthquakes. These occur when rocks in the earth’s crust break due to geological forces created by movement of tectonic plates. Another type,volcanic earthquakes, occur in conjunction with volcanic activity.
13 ав 1998
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