Richter Scale Definition, Uses & Range

How the Richter Scale Measures Earthquakes | Britannica

Richter and Mercalli scales used to measure earthquakes | Britannica

Earthquake Facts for Kids| Twinkl Teaching Wiki - Twinkl

Hey Ray: Earthquake magnitude measurements

Explaining how powerful Maine earthquake was on the Richter scale

SOLVED:The magnitude of an earthquake is measured on a logarithmic scale called the Richter scale. The magnitude M is given by M=log10 x, where x represents the amplitude of the seismic wave causing ground motion. How many times as great was the motion caused by the 1906 San Francisco earthquake that measured 8.3 on the Richter scale as that caused by the 2001 Bhuj, India, earthquake that measured 6.9?

SOLVED: The magnitude R, measured on the Richter scale, ofan earthquake of intensity I is definedas R=logII0, where I (lower) 0 is aminimum intensity used for comparison. If the intensity ofan earthquake was 10 (upper) 7.88 •I (lower)0, what was the magnitude on theRichter scale? The magnitude of the earthquake was what? (Simplify youranswer)