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Earthquakes and Math
Earthquake scientists (seismologists) use circle geometry to locate the epicenter of a quake and logarithms to classify its severity using the Richter scale.
Exponential Decay
Exponential Decay describes a rapid decrease. Exponential decay can be seen in a variety of places, including radiocarbon dating and the decay of dangerous chemicals.
The Richter Scale - Measuring Earthquake Magnitude
Earthquake scientists use logarithms when they measure the strength of an earthquake on "Richter Scale." That means that a magnitude 9 earthquake, like the big 2004 Indian Ocean Earthquake, is ten times as powerful as a magnitude 8 earthquake.
 
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