GEOLOGY

Detailed explanation-1: -Richter scale (ML), quantitative measure of an earthquake’s magnitude (size), devised in 1935 by American seismologists Charles F. Richter and Beno Gutenberg.

Detailed explanation-2: -The first widely-used method, the Richter scale, was developed by Charles F. Richter in 1934. It used a formula based on the amplitude of the largest wave recorded on a specific type of seismometer and the distance between the earthquake and the seismometer.

Detailed explanation-3: -Richter, in full Charles Francis Richter, (born April 26, 1900, near Hamilton, Ohio, U.S.-died September 30, 1985, Pasadena, California), American physicist and seismologist who developed the Richter scale for measuring earthquake magnitude.

Detailed explanation-4: -The Richter scale was developed in 1935 by American seismologist Charles Richter (1891-1989) as a way of quantifying the magnitude, or strength, of earthquakes.

Detailed explanation-5: -In seismology, the Gutenberg–Richter law (GR law) expresses the relationship between the magnitude and total number of earthquakes in any given region and time period of at least that magnitude.