The machine leaves a pen tracing that indicates the magnitude of the earthquake
LOL
Use a Seismograph.
It is a seismograph
GPS
the ground shifts and there are tiny earthquakes.
No, the pen on a seismograph does not swing freely. The pen is stationery only until an earthquake occurs. Then the pen moves along the paper according to the way the ground is moving or quaking.
seismograph seismograph seismograph seismograph
A seismograph is placed under the ground. Somewhere not to close to the surface, as when something on the surface moves, then it would be recorded on the seismograph. Something on the surface that moves can be a vehical driving along the road.
drum
An eclipse happens when the moon moves between the earth and the sun.
The earth moves directly south in the earth
The Earth's surface will change its shape and form.
The part of the seismograph that moves during an earthquake is called the pen.
Magnitude is how much the earth moved during an earthquake and is determined by the distance the marking device moves above and below the straight line on a seismograph.
A Seismograph. See link for more information:
Use a Seismograph.
Seismograph
A sudden movement of the Earth's crust is called an earthquake.