Back تشارلز فرانسيس ريختر Arabic تشارلز فرانسيس ريختر ARZ Charles Francis Richter AST Çarlz Fransis Rixter Azerbaijani چارلز فرانسیس ریشتر AZB Чарлз Рыхтэр Byelorussian Чарлз Франсис Рихтер Bulgarian চার্লস ফ্রান্সিস রিখটার Bengali/Bangla Charles Francis Richter Breton Charles Richter Catalan
Charles Francis Richter (April 26, 1900 – September 30, 1985) was an American seismologist (someone who studies earthquakes) and a physicist. He is known for creating the Richter scale of magnitude, which says how big an earthquake is.