Question

richter scale is used to measure earthquake explain how it works

Answer 1

By vibrations of the earthquake

Answer 2

The Richter scale is a standard scale used to compare earthquakes. It is a logarithmic scale, meaning that the numbers on the scale measure factors of 10. So, for example, an earthquake that measures 4.0 on the Richter scaleis 10 times larger than one that measures 3.0.