GEOLOGY

EARTH SCIENCE

EARTHQUAKES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which seismic wave moves at right angles?
A
P Waves
B
S Waves
C
Surface Waves
D
None of the above
Explanation: 

Detailed explanation-1: -They are transverse waves, which means that the particle motion is at right angles to the direction of travel.

Detailed explanation-2: -Both P and S waves travel outward from an earthquake focus inside the earth. The waves are often seen as separate arrivals recorded on seismographs at large distances from the earthquake.

Detailed explanation-3: -S-waves, also known as secondary waves, shear waves or shaking waves, are transverse waves that travel slower than P-waves. In this case, particle motion is perpendicular to the direction of wave propagation.

Detailed explanation-4: -An S body wave (secondary body wave) is only about half as fast as a P wave and causes the rock to vibrate at right angles to the direction of wave travel (Figure 2). Both P and S waves can travel through solid rock, but only P waves can pass through a fluid medium.

Detailed explanation-5: -P-waves shake the ground in the direction they are propagating, while S-waves shake perpendicularly or transverse to the direction of propagation (i.e. they displace material at right angles to their path).

There is 1 question to complete.