Earthquake Flashcards

1
Q

Slipping of a block of Earth’s crust with another block

A

Fault

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2
Q

Focus

A

Origin point of the earthquake

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3
Q

Alternative name for Focus

A

Hypocenter

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4
Q

Shaking of the ground by the tremendous release of energy due to the pressure in the Earth’s crust

A

Earthquake

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5
Q

P waves meaning

A

Primary or Compressional waves

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6
Q

Motion of P waves

A

Longitudinal

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7
Q

Motion of L waves

A

Transverse
Side to side movement

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8
Q

L waves meaning

A

Love waves

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9
Q

Kinds of surface waves

A

Love wave
Rayleigh wave

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10
Q

Waves that occur on the surface of the lithosphere

A

Surface waves

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11
Q

Body waves form

A

Primary or secondary waves

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12
Q

S waves meaning

A

Secondary or transverse waves

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13
Q

P waves travel

A

Through the interior of the earth

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14
Q

S waves travel

A

Within the interior of the earth

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15
Q

R waves meaning

A

Rayleigh waves

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16
Q

Shake the ground up and down movement

A

R waves

17
Q

Seismograph

A

Instrument to detect seismic waves

18
Q

Internal part of a seismograph

A

Seismometer

19
Q

Magnitude

A

Quantitative measure of the amount of energy released by an earthquake

20
Q

Process where magma escapes through earth’s interior to form cool and hard rocks

A

Volcanism

21
Q
A