Understanding Tsunamis

The video discusses the dangers and unpredictability of tsunamis, which are often caused by sudden ocean water displacement due to events like earthquakes. Tsunamis can travel at high speeds across oceans and cause massive destruction upon reaching coastlines. Historical tsunamis, such as the 2004 Indian Ocean Tsunami, have caused significant loss of life. To mitigate their impact, global tsunami warning centers monitor underwater earthquakes to alert vulnerable areas, allowing residents to evacuate to higher ground.

What is a key characteristic of tsunamis that makes them particularly dangerous?

• They are always preceded by a storm.

• They can strike with little warning.

• They only occur during the day.

• They are caused by human activity.

Which of the following is NOT a common cause of tsunamis?

• Volcanic eruptions

• Landslides

• Meteorites

• Tornadoes

How fast can tsunami waves travel across the ocean?

• Up to 300 mph

• Up to 900 mph

• Up to 100 mph

• Up to 600 mph

What happens to a tsunami wave as it approaches the shore?

• It slows down and increases in height.

• It speeds up and increases in height.

• It slows down and decreases in height.

• It speeds up and decreases in height.

What is unique about the way a tsunami wave moves compared to ordinary waves?

• It only affects deep ocean areas.

• It crests and breaks like a regular wave.

• It dissipates before reaching the shore.

• It moves forward like a solid wall of water.

Where does the word 'tsunami' originate from?

• Japan

• China

• Indonesia

• India

Which tsunami is considered the deadliest in recorded history?

• The 2011 Japan tsunami

• The 2004 Indian Ocean tsunami

• The 1960 Chilean tsunami

• The 1883 Krakatoa tsunami

How many countries were affected by the 2004 Indian Ocean tsunami?

• 15

• 11

• 8

• 5

What is the primary goal of tsunami warning centers?

• To alert coastlines and give residents time to evacuate

• To predict the exact time of a tsunami

• To prevent tsunamis from occurring

• To study the history of past tsunamis

What do tsunami warning centers monitor to predict potential tsunamis?

• Ocean currents

• Weather patterns

• Underwater earthquakes

• Volcanic activity