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Charles Richter

Charles Richter
Charles Francis Richter, American seismologist and physicist (d. 1985)

Charles Francis Richter was an American seismologist and physicist. He is the namesake and one of the creators of the Richter magnitude scale, which, until the development of the moment magnitude scale in 1979, was widely used to quantify the size of earthquakes. Inspired by Kiyoo Wadati's 1928 paper on shallow and deep earthquakes, Richter first used the scale in 1935 after developing it in collaboration with Beno Gutenberg; both worked at the California Institute of Technology.

26 April 1900

Born on the same birth date (26 April 1900): Eva AschoffHack Wilson

Born on the same birth day (26 April): Douglas SirkPeter II of PortugalRudolf HessSandra SchmittVicente Aleixandre

Born in the same month (April 1900): Adolf DymszaBertha IsaacsCamille ChamounElizabeth GoudgeGladwyn JebbHeinrich Müller (Gestapo)Herbert BayerJim BottomleyMarie BylesPierre MolinierRhea SilbertaRichard Hughes (British writer)Stefanie ClausenTebbs Lloyd Johnson