Question

what is a tsunami? how is it caused ​

Answer 1

Answer:A tsunami is a series of waves caused by earthquakes or undersea volcanic eruptions. ... Out in the depths of the ocean, tsunami waves do not dramatically increase in height. But as the waves travel inland, they build up to higher and higher heights as the depth of the ocean decreases.

A tsunami is a large ocean wave that is caused by sudden motion on the ocean floor. This sudden motion could be an earthquake, a powerful volcanic eruption, or an underwater landslide. ... Tsunamis travel across the open ocean at great speeds and build into large deadly waves in the shallow water of a shoreline.

Explanation:

Answer 2

Answer:

tsunami is the Japan term meaning harbour waves.

Explanation:

it is adopted to large seismically generated sea waves caused by earthquake, submarine explosion and landslide. These waves travel at a great speed more than 500km per hour. And the length of the waves exceeds 600 km . These waves reach to a height of more than 15m near the sea shore and are capable of causing destruction along the coastal area.