Question

What is Seismograph? [ urgent]

Answer 1

it is an instrument that measures and records the details of earthquakes,such as force and duration

Answer 2

Seismograph, also called a seismometer, is an instrument that measures and records seismic waves that move through the earth as the result of an earthquake.

A seismograph can help scientists detect earthquakes and measure several aspects of the event:

1】The time at which the earthquake occurred

2】The epicenter, which is the location on the surface of the earth below which the earthquake occurred.

3】The depth below the earth's surface at which the earthquake occurred.

4】The amount of energy released by the earthquake