A Seismograph
The Richter Scale is used to rate earthquakes.
seismograph is one instrument that could measure earthquakes and volcanoes etc but seismograph is many times use at earthquake!
Seismagraph
A seismograph.
Scientists use seismographs to measure the magnitude of earthquakes. Seismographs detect the seismic waves generated by an earthquake, and the amplitude of these waves is used to calculate the earthquake's size. The most common scale used to measure earthquake size is the Richter scale or the moment magnitude scale.
seismogram
I think it's a seismograph.
Richtor scales
Seismic waves can be used to determine the location of an earthquake focus. These waves are triggered by tectonic plates.
The palindrome for an instrument used to determine speed is radar. It reads the same forwards and backwards.
hygrometer
The tool used to measure the magnitude of an earthquake is called a seismometer or seismograph. Seismometers detect and record the vibrations caused by seismic waves during an earthquake, allowing scientists to determine the magnitude of the event.