MercalliyoudaoicibaDictYouDict[Mercalli 词源字典]
in reference to Mercalli scale, 1900, named for Italian geologist Giuseppe Mercalli (1850-1914), who invented it ("I Terremoti della Liguria e del Piemonte," Naples, 1897). It was a modification of the Rossi-Forel scale (1883).[Mercalli etymology, Mercalli origin, 英语词源]