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What caused the tsunami in Sumatra?

• Volcanic eruption

• Iceberg melting

• Meteorites

• Shifting of the Earth's crust

What happened on December 26, 2004?

• A smallest tornado ever recorded

• One of the deadliest tsunamis

• Volcano eruption in Sumatra, Indonesia

• Hurricane Katrina hit New Orleans

Sumatra is an island of which country?

• Malaysia

• Italy

• Indonesia

• Japan

What happens when a tsunami hits land?

• It becomes less powerful

• It disappears

• The whole length of the wave sweeps forward

• It turns back and goes out to sea

How high can a tsunami wave get?

• 130 meters

• 5 meters

• 10 meters

• 20 meters

What can't create a tsunami?

• Volcanic eruptions

• Meteorites

• Landslides

• Forest fires

What are tsunamis composed of?

• Single waves

• Crests

• Ocean currents

• A series of crests called a wave train

What is the main cause of a tsunami?

• Undersea earthquake

• Iceberg melting

• Hurricane winds

• Solar flares

What happens to the front of the wave when a tsunami reaches shallow water?

• Nothing happens

• It slows down

• It speeds up

• It doesn't reach shallow water

What happens when the ocean floor cracks during an undersea earthquake?

• Nothing happens

• One side is thrust upwards

• The water becomes more calm

• A hole opens up in the ocean floor