Living

What is t tsunami?

Tsunami is a Japanese word which means “harbor wave”. Tsu means harbour and “nami” means wave.

Definition:

a tsunami is a large wave that are generated in a water body when the sea floor is deformed by seismic activity.

This activity displaces the over flying water in the ocean.

Causes of tsunami

Seismic activities like earthquakes, landslides, volcanic eruptions, explosions,can generate tsunami.

Deformation of the sea floor due to the movement of plates.

Concept of tsunami

Tsunami is a not a single wave but a series of waves like the ordinary waves, which we see on a sea.

Ordinary waves have relatively short wavelength of about 100 meters .but tsunamis have wavelength of about 500 km.

When tsunami approaches the seashore its velocity decreases, the height and energy of the wave increases. its height near the seashore ranges from 15 meter to 65 meter.