Seismic waves such as those produced by earthquakes.
The magnitude, Richter scale, and seismograph.
seismometer, also known as a seismograph. which record seismic waves
A seismometer is used to detect and record earthquakes by measuring the motion of the ground. It consists of a mass suspended on a spring that moves with the vibrations caused by an earthquake, which is then recorded on a seismograph.
Here are some sentences.Scientists use a seismograph to measure movement in the earth.The seismograph showed that an earthquake had occurred.
GPS
A seismograph is a machine for measuring and recording parameters relating to the movements of the Earth's surface caused by earthquakes or explosions.
well, the sandglass to measure the time. the measuring cups to measure the volume, the seismograph, the ruler, etc.
Seismometers. For information on how seismometers are used, please see the related question.
A seismometer is a seismograph made to measure the direction, intensity, and duration of earthquakes. It does this by measuring the actual movement of the ground.
A seismograph is used to measure ground movement or vibrations on the Richter scale.
A seismograph.
seismograph