Question

Which of the following is/are true about the characteristics of a tsunami?

• A. Its amplitude is more in the deep sea than that on the land.
• B. It is not felt by the ships sailing across the sea.
• C. Its speed can vary between 600 and 800 kmph.
• D. It cannot be a result of a meteorite impact.

Answer 1

Answer: (B), (C)

The correct options are
B It is not felt by the ships sailing across the sea.
C Its speed can vary between 600 and 800 kmph.

Tsunami (Japanese for 'Tsu = harbour' and 'Nami = wave') is a natural disaster consisting of gigantic sea waves that sweeps across the coastal lands submerging them and thus causing huge loss of life and property.

Tsunamis can be created due to earthquakes, meteorite collisions with the surface of earth and volcanic eruptions.

Usually tsunamis have a speed of 600-800 kmph and a wavelength of 10-1000 km. But their amplitude is less in the deep sea and is generally not felt by the sails or vessels voyaging across the sea.