Richter scale
/ˈrɪktə
/noun Geology
A numerical scale for expressing the magnitude of an earthquake on the basis of seismograph oscillations. The more destructive earthquakes typically have magnitudes between about 5.5 and 8.9; it is a logarithmic scale and a difference of one represents an approximate thirtyfold difference in magnitude.Each unit on the Richter scale represents a thirty-fold increase of energy....
- Seismographs and the Richter scale are just one type of graph that scientists use to measure the world.
- Nine on the Richter scale indicates an earthquake of absolutely awesome destructive power.
Origin
1930s: named after Charles F. Richter (1900–85), American geologist.
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