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case study

The 2018 Indonesian tsunami

Causes, impact and responses

GCSE courses require you to know about natural hazards including earthquakes and tsunamis. This case study provides information about the devastating 2018 tsunami in Indonesia and explores the causes, impact and responses to this natural disaster.

The bridge at Palu was completely destroyed

In September 2018, the Indonesian island of Sulawesi was devastated by a tsunami, triggered by an earthquake. Indonesia is the world’s largest island country, with more than 17,000 islands. With a population of over 261 million people, it is the world’s fourth most populous country.

On 28 September 2018, a 7.5-magnitude earthquake struck at a depth of 10 km off the north coast of the island of Sulawesi. It triggered a huge wave known as a tsunami, which engulfed the coastal town of Palu.

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Interpreting weather maps

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The changing UK high street

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