The 2018 Sunda Strait Tsunami
Lesson details
Learning outcome
I can explain how a tsunami occurs and what happened in the Sunda Strait in 2018.
Key learning points
- A tsunami is a series of large, powerful ocean waves caused by a sudden disturbance.
- Undersea earthquakes, volcanic eruptions and landslides can displace sufficient water to trigger a tsunami.
- In 2018, a tsunami was caused by the collapse of the Anak Krakatau volcano in the Sunda Strait in Indonesia.
- Tragically, the tsunami led to the deaths of over 430 people.
- The impact was devastating due to insufficient warning systems, the Strait funnelling the waves, and the time of day.
Keywords
Tsunami - a series of large, powerful ocean waves caused by a sudden disturbance
Displace - to move something from its original position, e.g. ocean water
Infrastructure - the basic systems in a country, such as transport and power supply
Common misconception
Tsunamis are just big waves.
Tsunamis are caused by displacement of the ocean, not wind blowing over the surface. Tsunami waves don’t break, they come as a fast-moving wall of water, which can be far bigger and faster than a normal wave. They can also flood kilometres inland.
Teacher tip
Emphasising that the knowledge from the lesson could save their lives, can add importance to the content.
Content guidance
Depiction or discussion of violence or suffering
Supervision
Adult supervision required
Licence
Lesson video
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Prior knowledge starter quiz
6 Questions
Q1.Match the keywords to their definitions.
Molten rock beneath Earth's surface
The point on the surface above a quake
Molten rock that has reached the surface
A large section of Earth's crust that moves
Q2.What happens at a destructive plate boundary?
Q3.Which of these is a primary effect of a volcanic eruption?
Q4.What is the molten rock called before it erupts?
Q5.Which of these is a secondary effect of an earthquake?
Q6.Which instrument detects earthquakes?
Assessment exit quiz
4 Questions
Q1.Match the keywords to the definition.
Large ocean waves caused by sudden disturbance
Move from original position
Basic transport and power systems
Q2.What caused the 2018 Sunda Strait tsunami?
Q3.Why can tsunamis be more dangerous than normal waves?
Q4.Why are tsunamis not 'just big waves'?
To help you plan your 8 geography lesson on: The 2018 Sunda Strait Tsunami, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your 8 geography lesson on: The 2018 Sunda Strait Tsunami, download all teaching resources for free and adapt to suit your pupils' needs.
The starter quiz will activate and check your pupils' prior knowledge, with versions available both with and without answers in PDF format.
We use learning cycles to break down learning into key concepts or ideas linked to the learning outcome. Each learning cycle features explanations with checks for understanding and practice tasks with feedback. All of this is found in our slide decks, ready for you to download and edit. The practice tasks are also available as printable worksheets and some lessons have additional materials with extra material you might need for teaching the lesson.
The assessment exit quiz will test your pupils' understanding of the key learning points.
Our video is a tool for planning, showing how other teachers might teach the lesson, offering helpful tips, modelled explanations and inspiration for your own delivery in the classroom. Plus, you can set it as homework or revision for pupils and keep their learning on track by sharing an online pupil version of this lesson.
Explore more key stage 3 geography lessons from the Tectonic hazards: Why is Earth restless? unit, dive into the full secondary geography curriculum, or learn more about lesson planning.