What type of seismic wave only travels on the earth surface?
The type of seismic wave that only travels on the Earth's surface is called a surface wave.
What are seismic waves? (choose all that apply)(1 point)
Responses
waves of energy in the Earth caused by the movement of materials in the Earth
waves of energy in the Earth caused by the movement of materials in the Earth
waves in the atmosphere caused by wind and weather
waves in the atmosphere caused by wind and weather
wave in the earth produced by an earthquake or other means
wave in the earth produced by an earthquake or other means
waves on the moon caused by asteroids
waves on the moon caused by asteroids
The correct responses are:
- waves of energy in the Earth caused by the movement of materials in the Earth
- waves in the earth produced by an earthquake or other means
How do S and P waves move through the Earth? What happens to them as they move through the layers?
S-waves, also known as shear waves, move through the Earth by causing particles to move perpendicular to the direction of wave propagation. They travel slower than P-waves and cannot penetrate through liquids. As S-waves encounter the various layers of the Earth, their motion can be affected. For instance, when S-waves encounter the outer core, which is liquid, they cannot pass through it and are thus blocked. This phenomenon is known as the S-wave shadow zone.
On the other hand, P-waves, also called primary waves or compressional waves, move through the Earth by causing particles to move in the same direction as the wave propagation. P-waves are capable of passing through solids, liquids, and gases. As P-waves encounter different layers within the Earth, they can change direction or refract due to differences in the density and composition of the materials they pass through. This refraction of P-waves is responsible for the detection and mapping of the Earth's internal structure.
Which stations will record fewer waves than the others based on their locations?
Stations located farther away from the earthquake epicenter will record fewer waves compared to stations located closer to the epicenter. As seismic waves travel through the Earth, their intensity reduces with distance, resulting in fewer waves being recorded at more distant stations. Therefore, stations that are further away from the earthquake source will generally record fewer waves.
Which stations will record fewer waves than the others based on their locations?
(1 point)
Responses
Stations 2 and 3
Stations 2 and 3
Stations 1 and 4
Stations 1 and 4
Stations 1 and 2
Stations 1 and 2
Stations 3 and 4