EarthQuakes Flashcards

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1
Q

S Waves

A

A body wave that is considered secondary waves because they come second in the earthquake. They can only travel through solids 3.5 km per second.

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2
Q

Love Waves

A

A surface wave that is perpendicular to the wave’s directions, they move through solids.

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3
Q

Rayleigh Waves

A

A surface wave that travels in solid ground causing the ground to rumble and lots of damage. They move in rolling motion (Counterclockwise), they also cause a lot of damage.

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4
Q

EarthQuake

A

A shaking of the Earth caused by the movement of a tectonic plate.

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5
Q

Shadow Zone

A

Parallel areas of the side of the earth where earthquake waves seem to vanish

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6
Q

Body Waves

A

Waves that come from the center of the earth

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7
Q

Surface waves

A

Waves that move from the surface

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8
Q

S Wave Ideas

A
  • Body Wave
  • Particles move Perpendicular to the wave
  • only moves through solids
  • Slower than P Waves
  • goes through the crust
  • It would travel solids as p waves would but stops at liquids making the rest of the earth a shadow zone
  • Secondary
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9
Q

P Wave Ideas

A
  • Body Wave
  • First known wave from an earthquake to arrive at the seismograph
  • pushes and pulls on the rock
  • moves through both solids and liquid
  • particles and waves both move in the same direction
  • fastest kind of seismic wave
  • once it enters into a more dense area, it slows down, and speeds back up in a less despise area
  • Primary
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10
Q

Love Wave Ideas

A
  • Surface Wave
  • Particles move in an up and down motion while the wave moves in a side to side motion
  • moves through solids, not liquid
  • Faster than Rayleigh waves
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11
Q

Rayleigh Wave Ideas

A
  • “Rolling” waves
  • Surface waves
  • Last a long time
  • Travel in a rolling backward motion
  • Cause a lot of damage
  • Slowest wave
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12
Q

Where do waves start

A

At the epicenter

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13
Q

How waves travel

A

Travel in a spherical, outward motion in all directions

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14
Q

When do body waves become surface waves

A

When they get to the crust

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15
Q

Relationship Between waves by speed

A

Love waves are slower than p and S waves and faster than Rayleigh waves

P waves are the fastest of all waves

S waves are slower than p waves and faster than love and Rayleigh waves

Rayleigh waves are the slowest of all waves

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16
Q

Waves in order of speed and arrival

A
  1. P
  2. S
  3. Love
  4. Rayleigh
17
Q

S and P waves arrives at different times…why?

A

They start at the same time, but since S waves are slower, they move farther apart

18
Q

Process of an Earthquake

A

Two plates will slide past, push up against, or move away from each other

When this occurs, the plates move violently

They create waves

Usually happens on a plate boundary

  • –Can happen in the middle of plates in places called rifts
  • –Happens because they can also move
19
Q

Relationship between waves and their particles

A

P waves’ particles goes in the same way as the wave is going

S waves’ particles goes perpendicular with the wave

Love waves’ particles move a different direction from the waves

Rayleigh Waves’ particles move in a rolling motion

20
Q

P Waves

A

A body wave that is considered primary waves because they come first in the earthquake. They travel through solids, molten rock, and fluids at 1-5 miles per second.