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Rāhina, 17 Paenga-whāwhā, 2017Rāhina, 17 Paenga-whāwhā, 2017

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Presentation on theme: "Rāhina, 17 Paenga-whāwhā, 2017Rāhina, 17 Paenga-whāwhā, 2017"— Presentation transcript:

1 Rāhina, 17 Paenga-whāwhā, 2017Rāhina, 17 Paenga-whāwhā, 2017
Do now: copy Rāhina, 17 Paenga-whāwhā, 2017Rāhina, 17 Paenga-whāwhā, 2017 Earthquakes are measured on 2 different scales The Richter Scale – measures the magnitude of the earthquake on a scale of 1 – 10. Each point on the scale is: 10x bigger in size (or amplitude) 30x the energy released The Mercalli Scale – measures the damage done at a particular location on a scale I – XII I (not felt) – XII (total destruction)

2 What did the 22nd Feb earthquake measure on the Mercalli scale?
Complete the Mercalli Scale matching game (in groups) to help you… Write Table 11-1 on the board, to help relate to Richter scale

3 Richter Scale How much bigger is the amplitude of a magnitude 4.0 earthquake compared to a magnitude 8.0 earthquake? 10 x 10 x 10 x 10 = 10,000 times bigger How much more energy is released? 30 x 30 x 30 x 30 = 810,000 times the energy Write Table 11-1 on the board, to help relate to Richter scale

4 Advantages vs Disadvantages?
Richter vs Mercalli! Advantages vs Disadvantages? Write Table 11-1 on the board, to help relate to Richter scale 1900 – 1985 1815 – 1914

5 Liquefaction – Demo & Videos

6 Today’s Learning Compare and contrast the Richter and Mercalli Scales
Rāhina, 17 Paenga-whāwhā, 2017 Today’s Learning Compare and contrast the Richter and Mercalli Scales Describe the rock cycle Types of rocks Processes (e.g. weathering vs erosion)


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