Covers the scales scientists use to measure the size and intensity of earthquakes.
We’ve all heard earthquakes described in terms of their magnitude number. But what does this scale really mean? This video illustrates the variation of energy released in easy-to-understand terms.
Reviews the scales scientists use to measure the size and intensity of earthquakes.
Earthquake magnitude is measured on a logarithmic scale so each whole number releases 33 times more energy than the number below it.
Earthquake intensity maps are made to indicate where the shaking occurred. Maps from quakes before widespread seismograph networks use creative information.