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Science > Earthquake > Flashcards

Earthquake Flashcards

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1
Q

The process whereby rocks bend, store and suddenly release energy.

A

Elastic Rebound Theory

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2
Q

Who proposed the Elastic Rebound Theory ?

A

Harry F. Reid

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3
Q

The energy that is released in an earthquake is in the form of vibrations.

A

Seismic waves

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4
Q

Five hazards of earthquakes?

A
  1. Fire
  2. Structural Collapse
  3. Tsunamis
  4. Liquefaction
  5. Landslides
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5
Q

Two types of seismic waves

A
  1. Body waves
  2. Surface waves
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6
Q

Those that travel through the interior of the earth

A

Body waves

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7
Q

When body waves reach the surface of the earth day shake the ground giving rise to

A

Seismic waves

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8
Q

Two types of body waves

A

1.Primary wave(p-waves)
2. S(Secondary)-waves

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9
Q

Waves that travel through the earth by pushing rocks in the direction they are traveling they are almost twice as fast as s-waves and can travel through solids liquids and gas

A

Primary wave ( P. waves)

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10
Q

Can travel through the earth by displacing rocks at right angles to the direction of travel they cannot pass through fluids

A

S( Secondary) waves

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11
Q

Two types of surface waves

A
  1. Rayleigh waves
  2. Love waves
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12
Q

Surface that shakes the ground up and down

A

Rayleigh waves

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13
Q

Shakes the ground side to side

A

Love waves

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14
Q

Two ways of describing an earthquake

A
  1. Intensity
  2. Magnitude
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15
Q

Refer to the Effects and damage of an earthquake

A

Intensity

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16
Q

Is the measure of the energy released by an earthquake

A

Magnitude

17
Q

The first intensity scale was developed by

A

Giuseppe Merealli

18
Q

Intensity scale was developed in

A

1902

19
Q

Intensity scale uses what numerals?

A

Roman numerals

20
Q

What do scientists use to measure magnitudes?

A

Seismograms

21
Q

The magnitude is expressed using the

A

Richter scale

22
Q

Seismograms uses what numerals?

A

Hindu Arabic Numerals

23
Q

It’s a vibration of the earth due to the rapid release of energy

A

Earthquake

24
Q

Is a breaks in the earth’s crust

A

Fault

25
Q

Is the origin or the center of the earthquake

A

Focus

26
Q

The point on the surface of the earth

A

Epicenter

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