Richter scale (ML) describes the quantitative measure of an earthquake's magnitude (size), devised in 1935 by American seismologists Charles F. Richter and Beno Gutenberg. The earthquake's magnitude is determined using the logarithm of the amplitude (height) of the largest seismic wave calibrated to a scale by a seismograph.

The Richter scale, formally known as ML or local magnitude, serves as a quantitative measure of an earthquake's magnitude, or size. Developed in 1935 by American seismologists Charles F. Richter and Beno Gutenberg, this scale provides valuable insights into the seismic activity and potential impact of earthquakes.

At its core, the Richter scale assesses an earthquake's magnitude by analyzing the amplitude, or height, of the largest seismic wave recorded by a seismograph. This measurement is then transformed into a logarithmic scale, offering a clear and standardized representation of the earthquake's strength.

By calibrating seismic data to this scale, scientists can accurately compare earthquakes of varying sizes and assess their potential impact on structures, communities, and the environment. The Richter scale's widespread adoption has facilitated the monitoring and analysis of seismic events worldwide, contributing to enhanced preparedness and response efforts in regions prone to earthquakes.