# What is a seismograph?

Dec 21, 2017

A seismograph is the $\text{instrument}$ used to measure earthquakes.

$\text{Seismograph = instrument}$
~ ~ ~ ~ ~ ~ ~ ~

A seismogram is the $\text{line drawing}$ a seismograph produces.

$\text{Seismogram = line drawing}$

#### Explanation:

A seismograph is the $\text{instrument}$ used to measure earthquakes.

The word   [ seismo ] .........  [ graph ]    means
$\textcolor{w h i t e}{\ldots \ldots \ldots \ldots .}$[ earthquake ] $\textcolor{w h i t e}{\ldots .}$[ writer ]

It is the instrument that writes the line drawing of an earthquake.

Here's an image of a seismograph

A seismogram is the $\text{line drawing}$ a seismograph produces.

The word     [ seismo ] .................. [ gram ]    means
$\textcolor{w h i t e}{\ldots \ldots \ldots \ldots . .}$[ earthquake ] $\textcolor{w h i t e}{\ldots .}$[ written record ]

It is the line drawing of the earthquake's vibrations.

Here is an image of a seismogram.
The image shows the time, the duration, and the intensity of the earthquake.