Geophysicists, seismic surveyors, and engineers use geophones to measure ground vibrations and seismic activity. They are commonly used in industries such as oil and gas exploration, engineering and construction, and earthquake monitoring.
Earthquake
Seismologists and researchers primarily use the Richter scale to measure the magnitude of earthquakes. Emergency response teams and disaster management agencies also rely on this scale to assess the impact of earthquakes and coordinate relief efforts.
The strainmeter, by which its seismometer component detects the vibrations or shock waves that its seismograph records, is the scientific instrument that's used to predict and measure earthquakes.
Scientists use seismometers to measure the surface waves of earthquakes. These instruments detect ground motion caused by seismic waves and can provide valuable data on the intensity and duration of surface waves during an earthquake.
A seismograph.
Scientists use seismographs.
Seismographs are used to measure earthquakes, and how violent they are.
Since a seismograph is a device used to measure the magnitude earthquakes, someone who studies earthquakes would use it.
Scientists use seismometers to record the seismic waves produced by earthquakes. These instruments measure the strength, duration, and frequency of seismic waves, helping scientists determine the earthquake's magnitude and location. The data collected from these instruments are crucial for understanding seismic activity and improving earthquake prediction and response strategies.
Geophysicists, seismic surveyors, and engineers use geophones to measure ground vibrations and seismic activity. They are commonly used in industries such as oil and gas exploration, engineering and construction, and earthquake monitoring.
They use a richter scale to measure intensity and magnitude.
Earthquake
If for ancient China, (i am assuming because you said did) it is seismograph
Seismograph
they use the pH scale
To measure the strength of a magnet accurately, you can use a device called a gaussmeter. This tool measures the magnetic field strength in units called gauss or tesla. By placing the magnet close to the gaussmeter, you can determine its strength.