Why, a seismographer of course!
Seriously though...
Anyone who studies, or monitors for, earthquakes, volcanoes, & other such phenomena would use one.
Geologists use seismographs. They try to see when an earthquake is going to occur.
a siesmogram is a record made by a siesmograph
the seismograph was invented in Chicago, 1800.
John Milne invented the seismograph in 1880
It's a seismograph.
siesmograph
By using a siesmograph.
The correct spelling is seismograph. A seismograph is an instrument used to detect and record earthquakes.
A seismograph operates on the movement of the ground during an earthquake. It is sensitive enough to record the movement of a truck nearby.
Lots of jobs use landforms
There are no jobs that don't use numbers?
jobs