A seismograph is located under the ground. When there is an earthquake, the ground shakes, which also shakes the pen on the seismograph, making it move along the paper, drawing lines. To know how strong the earthquake was, scientist can look on the paper. The bigger the lines, the stronger the earthquake was.
A seismograph is used to measure the vibrations that are caused by an earthquake. The instrument is able to detect even small tremors.
Seismometers. For information on how seismometers are used, please see the related question.
seismic waves
Seismograph
seismograph
during an earthquake
A seismograph.
A seismograph is used to measure ground movement or vibrations on the Richter scale.
earthquakes are measured by seismic waves so scientists use a seismograph. there are a bunch of seismographs at a station and each one records the same stuff according to the p, s, and surface waves.
A seismometer (replacing the outdated term seismograph), but other instruments may also respond to an earthquake. The simplest example of a seismograph is a pendulum.
The correct spelling is seismograph. A seismograph is an instrument used to detect and record earthquakes.
seismograph scale
a seismograph