Question

what is an earthquake what are its cause

Answer 1

HEYA user

Here’s your answer:-

The sudden shaking or trembling of earth is called earthquake.
Causes of earthquakes
Death of human life
Property loss
Etc
Earthquake is caused beacause of tremors inside earths crust
The layer is fragmented into many pieces .Each fragment is called a plate .When one plate collides over other plate then there is a deep distrubemce inside earths crust and causes earthquake

Have a great day ahead ^_^

Answer 2

Earthquake is a calamity that cause destruction. It cause due to the shakening of the earth crust, resulting in the sudden release of energy in the earth's lithosphere that creates seismic waves.
Causes of earthquake are:
pressure.

Groundwater – increase in pore pressure.

Heavy rain.

Pore fluid flow.

High CO2 pressure.

Building dams.