How tsunamis work - Alex Gendler

How do tsunamis differ from normal ocean waves?

• Tsunamis are only found in shallow water

• Normal ocean waves are caused by wind, while tsunamis are caused by underwater energy

• Tsunamis move much slower than normal ocean waves

• Normal ocean waves affect the entire depth of the water, unlike tsunamis

What is the primary cause of tsunamis?

• Wind blowing over the ocean surface

• The gravitational pull of the Sun and Moon

• Underwater events like volcanic eruptions, landslides, or earthquakes

• Large ships moving through the water

What happens to a tsunami wave as it moves from deep ocean water to shallow coastal water?

• It speeds up and becomes shorter

• It slows down and its height increases

• It completely disappears

• It changes direction and moves back out to sea

What is one method scientists and policymakers are using to help protect people from tsunamis?

• Building taller buildings along the coast

• Monitoring underwater pressure and seismic activity for early warnings

• Creating large artificial islands to block waves

• Developing special boats that can withstand tsunami impacts