Waves

Everyone loves to swim in the water and have fun as soon as we get onto the beach.

When we get into the water, we see the water rising and falling at us.

This rising and falling of water alternatively is called Waves.

Waves are formed due to the winds blowing on the surface of the ocean.

Sometimes the winds blow at very high speeds causing huge and stronger waves.

Apart from wind, waves also can be caused by earthquakes or volcanic eruptions under the sea.

But these waves are very high. They end up causing a lot of destruction and are called Tsunami.

Let us discuss Tsunami.

The tsunami waves may be as high as 15 meters in height and they can travel at a speed of about 700 Km/hr or even more.

The largest tsunami ever measured was 524 meters above sea level in Lituya Bay, Alaska 1958.

In India, the tsunami of 2004 caused widespread damage in the South Eastern coastal areas.

Let us see how the tsunami of 2004 occurred and see the destruction it caused.

On 26 December 2004, an earthquake hit near the western boundary of Sumatra of Indonesia.

This earthquake shifted the Indian tectonic plate under the Burma tectonic plate in the Indian Ocean.

Due to that, water near these plates traveled at a speed of 800 km/hr.

Indira Point in Andaman and Nicobar islands, which marked the southernmost point of India was completely underwater.

The tsunami waves killed more than 10,000 people and destroyed the buildings near the coastal areas.

The worst affected places were the coastline areas of Andhra Pradesh, Tamil Nadu, Kerala, and the coastal islands.

Revision

The rise and fall of the surface water of the ocean is called Waves.

Waves are formed due to the winds blowing on the surface of the ocean.

Huge waves caused by earthquakes or volcanic eruptions under the sea are called Tsunami.

Tsunami waves travel at very high speeds and great heights.

The largest tsunami ever measured was 524 meters above sea level in Lituya Bay, Alaska 1958.

The Indian Ocean Tsunami in 2004 destroyed thousands of lives and property.

The southern coast of India like Andhra Pradesh, Tamil Nadu, and Kerala were the most affected places.

The End