Scientists use seismographs.
They use seismographs and the richter scale to determine their size.
the rictor scale
a tool used by scientists to measure earthquakes by movement
A seismograph is the device that scientists use to measure earthquakes. The goal of a seismograph is to accurately record the motion of the ground during a quake
they only rarely determine when they happen, but they can measure how bad they are when or after they happen.
there hands
Two separate systems used to measure earthquakes are important for accuracy. More than one system to measure gives scientists an accurate measurement of an earthquakes strength.
A seismograph is the device that scientists use to measure earthquakes. The goal of a seismograph is to accurately record the motion of the ground during a quake
I believe that scientists wanted a way to locate and measure earthquakes.
Earthquakes
It is important for scientists to develop ways to predict earthquakes. By it they can measure when the next one would be.
To measure temperature, scientists use:KelvinCelsiusFahrenheit.