Earthquakes Flashcards

(8 cards)

1
Q

What are the 3 main types of faults called?

A
  1. Normal Fault
  2. Thrust Fault
  3. Slip-Strike Fault
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2
Q

What happens when a normal fault occurs?

A

2 pieces of rock move apart and one piece moves down.

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3
Q

What happens when a thrust fault occurs?

A

2 pieces of rock are pushed together and one piece moves up.

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4
Q

What happens when a slip-strike fault occurs?

A

2 pieces of rock move alongside each other in opposite directions.

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5
Q

What is an earthquake?

A

An earthquake is a shaking or trembling in the ground caused by a sudden release of energy from faults.

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6
Q

What are faults?

A

Faults are when 2 pieces of rock or ‘plates’ move against each other, creating friction.

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7
Q

What is the focus of an earthquake?

A

The focus of an earthquake is where the earthquake starts in the ground.

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8
Q

What is the epicentre of an earthquake?

A

The epicentre of an earthquake is where the centre of the earthquake is on the surface of the Earth.

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