Tsunami Reteach2

What is a tsunami?

• A type of storm

• A wave of destruction originating from the ocean

• A volcanic eruption

• A strong wind

What causes tsunamis?

• Heavy rainfall

• Seismic activity like earthquakes and volcanoes

• High tides

• Loud noises

What was the magnitude of the earthquake that struck Valdivia, Chile in 1960?

• 9.5

• 6.0

• 7.5

• 8.0

How far can tsunamis travel?

• Up to 100 kilometers

• Up to 500 kilometers

• Across entire ocean basins

• Only within the local area

What is the minimum earthquake magnitude that can start to have very local effects of a tsunami?

• 6.0

• 4.5

• 7.0

• 5.5

What is the main challenge in preventing loss of life from a tsunami?

• Building strong buildings

• Predicting when and where it will strike

• Teaching people how to swim

• Evacuating animals

What year did the most powerful earthquake ever recorded occur?

• 2004

• 2018

• 1945

• 1960

What is the Japanese word for 'harbor wave'?

• Tsunami

• Kami

• Nami

• Harbori

What percentage of tsunamis occur in the Pacific Ocean?

• 90%

• 75%

• 50%

• 25%

What is soil liquefaction?

• A farming technique

• A way to clean soil

• Soil turning into a liquid-like state due to earthquake vibrations

• A type of soil that is naturally liquid