What coastline is most at risk of suffering from tidal waves?
The East Coast of the U.S.
The West Coast of Africa.
The Northern Coast of Australia.
Any coastline is at risk.

	What causes a tidal wave or tsunami?
Undersea earthquakes or landslides cause large ocean waves.
An underwater stampede of killer whales causes large ocean waves.
The gravitational force created by quickly changing tides generates a massive amount of energy, causing ocean surges and tidal waves.

	Are tsunamis dangerous?
No - they’re just big waves in the middle of the ocean.
Yes - they’ve killed thousands of people over the years.
Not sure.