Definition of the Richter scale noun from the Oxford Advanced Learner's Dictionary


the Richter scale

BrE BrE//ˈrɪktə skeɪl//
; NAmE NAmE//ˈrɪktər skeɪl//
jump to other results
a system for measuring how strong an earthquake is an earthquake measuring 7.3 on the Richter scale Word Origin1930s: named after Charles F. Richter (1900–85), American geologist.
See the Oxford Advanced American Dictionary entry: the Richter scale