| P waves S waves | The first wave to hit seismographs Second waves to hit seismographs | They are compression waves They are shear waves | Can move through solids and liquids Can only move through solids |
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How do you determine the difference between P waves and S waves?
In P or compressional waves, the vibration of the rock is in the direction of propagation. P waves travel fastest and are the first to arrive from the earthquake. In S or shear waves,
rock oscillates perpendicular to the direction of
wave propagation.
How do you find the difference in the arrival time of P wave and S wave?
As the P and S waves travel out from an earthquake the P waves get progressively farther ahead of the S waves. Therefore,
the farther a seismic recording station is from the earthquake epicenter
the greater will be the difference in time of arrival between the P and S wave.
How fast do P waves travel?
P-waves are the first waves to arrive on a complete record of ground shaking because they travel the fastest (their name derives from this fact – P is an abbreviation for primary, first wave to arrive). They typically travel at speeds
between ~1 and ~14 km/sec.
Why do P waves come first?
The direct P wave arrives first
because its path is through the higher speed, dense rocks deeper in the earth
. The PP (one bounce) and PPP (two bounces) waves travel more slowly than the direct P because they pass through shallower, lower velocity rocks. The different S waves arrive after the P waves.
Where do P-waves travel the fastest?
Because the
earth’s mantle
becomes more rigid and compressible as the depth below the asthenosphere
What wave causes the most damage?
Answer and Explanation:
Surface waves
are the seismic waves that cause the most damage. Surface waves are named as such because they move along close to the surface of the Earth.
Can You Feel P-waves?
The waves also travel through the Earth at different speeds. The fastest wave, called the “P” (primary) wave, arrives first and it usually registers a sharp jolt. … “It
feels more abrupt
, but it attenuates very quickly, so if you are far away you often won’t feel the P wave.”
Why didn’t the P waves arrive in each city at the same time?
Why didn’t the P waves arrive in each city at the same time? Answer Expert Verified
P-waves of primary waves originate from the epicenter
. Since each city has a different distance from the epicenter, the p-waves will arrive at different times.
What does the P stand for in P wave?
Compressional waves
Do P waves or S waves cause more damage?
An earthquake generates a series of seismic waves that travel through the interior or near the surface of the Earth. …
S waves are more dangerous than P waves
because they have greater amplitude and produce vertical and horizontal motion of the ground surface. The slowest waves, surface waves, arrive last.
What are the 3 types of waves in an earthquake?
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.
What happens to S and P waves as they travel inside Earth?
S waves cannot pass through the liquid outer core
How fast do P waves and S waves travel?
Why do P waves arrive first? When an earthquake occurs, seismic waves, including P and S waves carry energy away from the hypocenter in all directions. The P wave propagates with a
velocity of about six kilometers per second
in rock, while the S wave is slower at four kilometers per second.
What type of waves are the fastest?
P waves
travel fastest and are the first to arrive from the earthquake. In S or shear waves, rock oscillates perpendicular to the direction of wave propagation. In rock, S waves generally travel about 60% the speed of P waves, and the S wave always arrives after the P wave.
What does S wave stand for?
S-Waves. The S in S-waves stands for
secondary
, because they are the second-fastest seismic waves and the second type to be detected once an earthquake has occurred.
