Benchmark - Tsunamis

What causes a tsunami to form?

• An underwater earthquake

• A volcanic eruption

• A hurricane

• A tornado

How fast can tsunami waves travel in the deep ocean?

• Hundreds of miles an hour

• 50 miles an hour

• 10 miles an hour

• 5 miles an hour

What happens to tsunami waves as they approach land?

• They slow down and grow taller

• They speed up and become smaller

• They disappear completely

• They remain the same size

What was a major consequence of the 2004 tsunami in the Indian Ocean?

• More than 200,000 people died

• It caused a volcanic eruption

• It led to the discovery of a new island

• It resulted in a new species of fish

What technology is used today to help detect tsunamis?

• Satellites and radio-operated buoys

• Sonar and submarines

• Weather balloons and drones

• Seismographs and helicopters