Earthquakes Flashcards

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1
Q

What are the three type of Waves?

A

Primary Waves
Secondary Waves
Surface Waves

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2
Q

Describe Primary Waves

A
  • Fastest seismic waves
  • Longitudinal wave
  • Able to travel through liquids and solids
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3
Q

Describe Secondary Waves

A
  • Slower Seismic Waves
  • Transverse waves
  • Travel through solids only
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4
Q

Describe Surface Waves

A
  • Slowest Seismic waves
  • They can only travel on the surface of the earths crust
  • Cause most destruction
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5
Q

Describe Surface Waves

A
  • Slowest Seismic waves
  • They can only travel on the surface of the earths crust
  • Cause most destruction
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6
Q

What are the 2 factors that affect the speed of wave?

A
  • The density of the material heavier density = Slower Wave
  • The stiffness of the material
    Stiffer Material = Quicker Wave
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7
Q

Both factors increase…

A

lower in the mantle but stiffness effect winds so the p & s waves increase with depth because go the speed change, the waves refract

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