- a scale, ranging from 1 to 10, for indicating the intensity of an earthquake.
Origin of Richter scale
Examples from the Web for richter scale
This is how seismic safety is done, by the force of gravity, not from Richter-scale measurements.Latest Accident at San Onofre Nuclear Plant Worries Activists, Residents
February 13, 2012
The Taliban advance should be causing high Richter-scale reactions inside the Obama White House.The Taliban's Nuclear Threat
April 22, 2009
Word Origin and History for richter scale
1938, devised by U.S. seismologist Charles Francis Richter (1900-1985).
- A logarithmic scale used to rate the strength or total energy of earthquakes. The scale has no upper limit but usually ranges from 1 to 9. Because it is logarithmic, an earthquake rated as 5 is ten times as powerful as one rated as 4. An earthquake with a magnitude of 1 is detectable only by seismographs; one with a magnitude of 7 is a major earthquake. The Richter scale is named after the American seismologist Charles Francis Richter (1900-1985). See Note at earthquake.
A scale used to rate the intensity of earthquakes. The scale is open-ended, with each succeeding level representing ten times as much energy as the last. A serious earthquake might rate six to eight, and very destructive quakes rate higher.