# Richter scale

- ['rɪktə]noun Geology a logarithmic scale for expressing the magnitude of an earthquake on the basis of seismograph oscillations.
**Origin**1930s: named after the American geologist Charles F.*Richter*.

*English new terms dictionary.
2014.*

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**Richter scale**— ☆ Richter scale [rik′tər ] n. [devised by C. Richter (1900 85), U.S. seismologist] a logarithmic scale for indicating the magnitude of earthquakes using data from a seismograph: each step represents a magnitude that is about 10 times greater than … English World dictionary**Richter scale**— ► NOUN ▪ a logarithmic scale for expressing the magnitude of an earthquake on the basis of seismograph oscillations. ORIGIN named after the American geologist Charles F. Richter (1900 85) … English terms dictionary**Richter scale**— 1938, devised by U.S. seismologist Charles Francis Richter (1900 1985) … Etymology dictionary**Richter scale**— a scale, ranging from 1 to 10, for indicating the intensity of an earthquake. [1935 40; after Charles F. Richter (1900 85), U.S. seismologist] * * * Widely used measure of the magnitude of an earthquake, introduced in 1935 by U.S. seismologists… … Universalium**Richter scale**— for the standard measure of earthquake magnitudes. It is named for Charles Richter (1900–1985) of the California Institute of Technology, who invented it in the 1930s. The scale increases at a rate that is exponential rather than linear, making… … Bryson’s dictionary for writers and editors**Richter scale**— for the standard measure of earthquake magnitudes. It is named for Charles Richter of the California Institute of Technology, who invented it in the 1930s. The scale increases at a rate that is exponential rather than linear, making each level … Dictionary of troublesome word**Richter scale**— Rich|ter scale [ˈrıktə ˌskeıl, ˈrıx US tər ] n the Richter scale a system of numbers used for measuring how powerful an ↑earthquake is ▪ a severe earthquake measuring 7.2 on the Richter scale … Dictionary of contemporary English**Richter scale**— [[t]rɪ̱ktə(r) skeɪl[/t]] N SING: the N The Richter scale is a scale which is used for measuring how severe an earthquake is. An earthquake measuring 6.1 on the Richter Scale struck California yesterday … English dictionary**Richter scale**— noun a) A logarithmic scale used to express the energy released by an earthquake, each increase of 1 representing a 32 fold increase in energy. The students also faced and experienced earthquakes at various Richter scales. b) … Wiktionary**Richter scale**— /ˈrɪktə skeɪl / (say riktuh skayl) noun an open ended logarithmic scale used to express the magnitude or total energy of a seismic disturbance (as an earthquake). In this scale an increase of 1 indicates a tenfold increase in energy. Recorded… … Australian English dictionary**Richter scale**— Rich′ter scale n. gel a logarithmic scale for expressing the magnitude of an earthquake, a measurement under 5 considered minor and over 7 indicating major destruction • Etymology: 1935–40; after Charles F. Richter (1900–85), U.S. seismologist … From formal English to slang