Earthquakes Flashcards

1
Q

What is an earthquake

A

An earthquake is a sudden shaking and movement from the earth. They are caused from a transform plate boundary when a plate slips along a crack called a fault line the pressure releases and causes the earthquake eg. The San Andreas fault line

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2
Q

What is the focus

A

The focus is the point inside the earths crust where the earthquake starts

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3
Q

What is a shockwave/tremor

A

A shock wave or tremors travel out from the focus

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4
Q

What is the epicentre

A

The place on the earths surface directly above the focus is called the epicentre, it is where most damage happens

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5
Q

Where do earthquakes occur

A

Where plates collide and where plates slide past eachother

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6
Q

What locations do earthquakes usually happen

A
  • Hotspots
  • Pacific ring of fire Japan, California
  • Himalayas Nepal, china
  • The Mediterranean, turkey , Italy
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7
Q

What is the Richter scale

A

The Richter scale is a scale that measures the strength of an earthquakes it goes from 0 to 10

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8
Q

What does magnitude mean

A

The strength of the earthquake

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9
Q

Social impact of an earthquake

A
  1. Injury or death people can be killed or injured from falling, debris or collapsing objects
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10
Q

Economic impacts

A

Destruction of property building etc. the repairs to damage of buildings can be costly and take a lot of time to repair

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