GENERAL KNOWLEDGE

Detailed explanation-1: -A logarithmic Richter scale measures energy release during plate movements-an increase of 1 in magnitude corresponds to a 10-fold increase in the amplitude of shaking.

Detailed explanation-2: -Each increase of one unit on the scale represents a 10-fold increase in the magnitude of an earthquake. In other words, numbers on the Richter scale are proportional to the common (base 10) logarithms of maximum wave amplitudes.

Detailed explanation-3: -The Richter scale does NOT go from 1 to 10, or between any limits at all. Magnitude 0 and smaller earthquakes happen all the time. As a matter of fact, the smaller they are, the more frequently they occur, but the instrumental detection limit extends only to around magnitude-3.

Detailed explanation-4: -The Richter magnitude is recorded on a logarithmic scale on which an increase of one represents a ten times increase in amplitude. For example, a magnitude 5 earthquake produces ten times greater ground motion than a magnitude 4 earthquake.

Detailed explanation-5: -The Richter scale is a base-10 logarithmic scale, meaning that each order of magnitude is 10 times more intensive than the last one. In other words, a two is 10 times more intense than a one and a three is 100 times greater. In the case of the Richter scale, the increase is in wave amplitude.