A value less than 2 is considered to be micro and no value of 10 or higher has been recorded.
Developed with Beno Gutenberg, it has been superseded by analysis of the moment magnitude, and the effects are measured on the related Mercalli Scale. Values can be determined by looking at the amplitude of measured waves, and its values are logarithmic to the amount of energy released. A value less than 2 is considered to be micro and no value of 10 or higher has been recorded. For 10 points, name this scale that measures seismic activity including earthquakes named for an American scientist.
Developed with Beno Gutenberg, it has been superseded by analysis of the moment magnitude, and the effects are measured on the related Mercalli Scale.
{Richter} Scale