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Measuring Earthquakes

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Measuring Earthquakes

The moment magnitude scale is used to measure earthquakes.

Measures magnitude

Measures magnitude

  • The moment magnitude scale measures the magnitude of an earthquake by measuring how much energy it releases.
Logarithmic

Logarithmic

  • The scale is logarithmic.
  • This means that it goes up in tens. So 2 on the scale is 10x stronger than 1, and 3 is 10x stronger than 2.
Magnitude 1-10

Magnitude 1-10

  • We have never seen an earthquake with a magnitude larger than 9.5.
  • Earthquakes with a magnitude of 7 or more often cause a lot of damage and deaths.
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The Challenge of Natural Hazards

1.1

Natural Hazards

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Tectonic Hazards

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Weather Hazards

1.4

Climate Change

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The Living World

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Ecosystems

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Tundra & Polar Environments

3

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The UK Physical Landscape

3.2

Coastal Landscapes in the UK

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3.4

Glacial Landscapes in the UK

4

Urban Issues & Challenges

5

The Changing Economic World

5.1

The Changing Economic World

5.2

Economic Development in the UK

6

The Challenge of Resource Management

6.1

Resource Management

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Food

6.3

Water

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Energy

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