A Brief History Of The Richter Scale
![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjxFmN-CVkzsjCCxSIwPNnjRSZ0kQb_ZpTuahKCOYO22pTTCuDcC60D94LDi7gV-9oiXCIARCkRCK9x71VvS6l76O0BLOT8z2A0cWBFNchlNCPAEx81fd7_C-8qsySyFejwaA7QP7t5TIHfaDay/s1600/hisriscale.jpg)
The system operates on a base-10 logarithmic scale, measuring the amplitude of seismic waves recorded upon a seismograph. Being logarithmic, each incremental number on the scale denotes a 10x increase in magnitude - that is, a shaker measuring 5.0 on the Richter Scale is ten times larger as one measuring 4.0.
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