Unusual Impacts of Earthquakes
Task 1 - Watch the BBC video ‘Bang Goes The Theory’ and in the space below, explain with the aid of a diagram how a stick/slip fault occurs and how it moves the ocean above it. Record your notes on the worksheet above.
Task 2 - Watch the second video and in the space below, explain how liquefaction is caused and what it can do structures on the surface. The third video below shows how you can recreate the process of liquefaction on a sandy beach!
Task 2 - Watch the second video and in the space below, explain how liquefaction is caused and what it can do structures on the surface. The third video below shows how you can recreate the process of liquefaction on a sandy beach!
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Earthquake Case Study - Japan 2011
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Why & Where did it happen?
Starter: Watch the first video from the National Geographic to the right that gives a summary of this case study earthquake event in Japan. Task 3 - In the space provided on your worksheet: i. Using the map to the right (or this link) draw the locations of the plate boundary locations around Japan. Label the names of the plates and add direction arrows so show which way they are moving. ii. Using the following link, label the names of the three main islands. Link. iii. Using this Wikipedia link, drag the epicentre symbol below onto the actual location of the epicentre of the 2011 quake. iv. Label on the location of Tokyo, Sendai and the Fukushima nuclear power station Task 4 – Complete the fact box in the space provided on the worksheet. You might want to use the infographic at the bottom of this section to help you fill in some of the details and anything else can be completed using Google research. What were the secondary impacts? Task 5 - Click here to be taken to some before & after photos showing the devastation caused by the earthquake and subsequent tsunami. Choose one image of before & after and take a screen shot and paste both into the space provided in your work pack. Task 6 - Comment on the impacts of the tsunami on people, the economy, and the environment below. You can Click here to be taken to an article from the Daily Telegraph detailing the impacts of disaster if you need a bit of help. The Nuclear Meltdown (Triple Disaster) Task 7 - The picture on your worksheet is of the Fukushima nuclear power plant before the tsunami struck. 1. Why have a nuclear power station right next to the ocean when there is a risk of tsunamis? 2. Can you see any way that the tsunami risk has been reduced? Task 8 - Watch the first 1 minute of the 'Ten Years Later' video to the right and study the graphic above it. Complete the short written task on your worksheet to explain how the tsunami caused a nuclear meltdown. Task 9 - Although a secondary effect (something caused by the earthquake that happens after the quake itself) of the Japanese quake was the tsunami, this then caused another knock on effect (tertiary!). Watch the second 20 minute documentary to the right (Inside Fukushima). In the space on the worksheet, make notes on the short term (up to one week) and long term (years in the future) effects of the nuclear accident. |
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Reducing The Impacts Of Earthquakes
So, it is quite clear that humans can't stop earthquakes from happening. It is not possible to staple together plate boundaries and so nature must be allowed to run its course. However, we have a problem where large earthquakes happen where there are also large densities of people. The problem can be made much worse if these populations are also very poor.
Task 1 - Take a look at the comparative pie charts below showing incidences of big earthquakes (blue) compared to the deaths they caused (red) in both rich and poor countries. Complete the task on the worksheet.
To work out the percentage difference between two values, you might want to use this calculator.
Task 2 - Listen to the 23 minute podcast below from the BBC Inquiry team. As always, the episode is split into four parts and you will hear from four expert witnesses. Use the note taking section of the worksheet to answer the questions. Please click here for the transcript.
In the podcast, you heard and excerpt from a 2008 video called 'The Great Shakeout'. That video is embedded below. It shows you the likely impact of a large earthquake (which is overdue) on Southern California. Remember, there is nothing that people can do to stop this impending earthquake so the focus is on being prepared.
Task 3 - From 2:43 onward, make a list of the different ways that people can reduce their levels of vulnerability to the inevitable earthquake.
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Task 4 - Watch the second video above (October 2018) and take notes on how the annual shakeout works and how they hope to better prepare the population of southern California.
Task 5 - Watch the third and final video above. Take notes on how this application works. What are the advantages and disadvantages of the app?
Homework - Complete the following IGCSE Exam Style Question:
For a named earthquake, describe its effects on people and the environment. [7 marks]
or
Describe the techniques used to reduce the impacts of earthquakes on people. [7 marks]
For a named earthquake, describe its effects on people and the environment. [7 marks]
or
Describe the techniques used to reduce the impacts of earthquakes on people. [7 marks]
