Fundamentals of Earthquake

definition

Earthquake

Earthquakes are one of the most important natural calamities occurring on the land surface. Vibration or movement of the upper layers of the earth due to the pressure created inside is called earthquake.

definition

Reasons of the Earthquakes

1. Pressure increases in the interior of the earth and more earthquakes are caused.
2. Earthquakes are also caused due to deforestation, construction of dams, mining activities etc.

definition

Distribution of earthquakes in India

The occurrence of earthquakes is fairly widespread. The northern Himalayas, East Assam, Gujarat in the West have witnessed most of the earthquakes. In South India, Koyna, Latur and other places have experienced some earthquakes.

definition

Effects of earthquakes

The severity of the earthquakes is decided on the loss of life and destruction of property. It also leads to obstruction to transport spread of infectious diseases, increased tidal activity, change in river's direction etc.

definition

Precautionary measures on earthquake

1. Restricting construction of multi-storied buildings in earthquake-prone areas.
2. Using very light material for construction of houses in these areas.
3. Constructing houses to ensure stability.
4. Providing basic amenities to the quake-affected areas.
5. Disconnecting power supply in the event of an earthquake.