What is a seismograph?

1 Answer
Dec 21, 2017

A seismograph is the #"instrument"# used to measure earthquakes.

#"Seismograph = instrument"#
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A seismogram is the #"line drawing"# a seismograph produces.

#"Seismogram = line drawing"#

Explanation:

A seismograph is the #"instrument"# used to measure earthquakes.

The word   [ seismo ] .........  [ graph ]    means
#color(white)(.............)#[ earthquake ] #color(white)(....)#[ writer ]

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

Here's an image of a seismograph

enter image source here
https://www.colorado.edu/physics/phys2900/homepages/Marianne.Hogan/graphs.html
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A seismogram is the #"line drawing"# a seismograph produces.

The word     [ seismo ] .................. [ gram ]    means
#color(white)(..............)#[ earthquake ] #color(white)(....)#[ 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.

enter image source here

https://brocku.ca/cmt/upload/1069959018.7775/seismic_waves.htm

Here's a short video you can watch

How do we measure earthquakes?