Question

What are the advantages and disadvantages of Earthquakes?
OR
What are the effects of Earthquakes?

Answer 1

Earthquakes bring about changes on the surface of the earth that are very harmful to man.

Destructive Effects:

1. Many towns are destroyed and there is considerable loss of life and property.
2. They cause floods by the uplifting of land in the course of the river.
3. Some places are submerged under the sea.
4. Big cracks and fissures are formed on the surface of the river and they interrupt communications.
5. Sometimes rivers disappear or change their courses or get flooded. Railway lines are twisted.
6. They cause great tidal waves, which may bring havoc to the coastal areas.

Constructive Effects:

1. Precious metals and minerals come up to the surface for the use of man.
2. New lands for habitation above the surface of the sea are formed.
3. Sometimes new springs and waterfalls are formed, which help in irrigation.
4. Violent earthquakes have led to the formation of hills and mountains.
5. Bays and gulfs are formed along the coastal land to provide new ports and harbors.