Seismograph is used for:

Question

Question

This question was previously asked in

HTET PRT 2021 Official Paper

Answer 1

Key Points

Earthquake:

An earthquake is a form of energy of wave motion transmitted through the surface layer of the earth.
The instrument used for recording earthquakes is known as a seismograph.
The network of seismographic stations all over the world records dozens of earthquakes every day.
The point within the earth’s crust where an earthquake originates is called the focus.
It is also referred to as seismic focus.
It generally lies within the depth of 60 kilometres in the earth crust.
The point vertically above the focus on the earth’s surface is known as ‘epicentre’.
These earthquake waves originating from the focus travel in all directions.
But their intensity is the highest at the epicentre.
That is why the maximum destruction occurs at and around the epicentre.
The intensity of vibrations decreases as one moves away.

Thus, the instrument to record the intensity of the Earthquake is a seismograph.

Additional Information

To measure the speed of cyclone: Anemometer

To measure rainfall: Rain Gauge