Oxford Dictionary English the Richter scale nounnoun BrE BrE//ˈrɪktə skeɪl// ; NAmE NAmE//ˈrɪktər skeɪl// [singular] Add to my wordlistjump to other resultsa 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 Richter scale in the Oxford Advanced American DictionaryCheck pronunciation: the Richter scale oxfordlearnersdictionaries.com
