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Home > Science > Earth Science > Earthquakes > Measuring Earthquakes

Throw a rock into a pond or lake and watch the waves rippling out in all directions from the point of impact. Just as this impact sets waves in motion on a quiet pond, so an earthquake generates seismic waves that radiate out through the Earth

Earthquake Travel Time Information and Calculator
Use a Calculator and generate a listing of phase arrival times at YOUR seismic station

Measuring and Predicting Earthquakes
The Richter scale, was developed by Charles F. Richter in 1934. It used a formula based on amplitude of the largest wave recorded on a specific type of siemometer