EntityQ500062· pop 31· linked from 1,844 articlesmagnitudeSign in to savestrength of seismic waves of an earthquakeConnectionsRichter scaleEntityseismometerEntityCharles Francis RichterEntityprimary waveEntitysecondary waveEntityTajikistanCountrySoviet UnionConceptearthquakeEntityInternational Standard Book NumberEntityInternational System of UnitsEntityRocky MountainsEntityWayback MachineEntitygraniteEntityjouleEntityworkEntitydigital object identifierEntityInternational Standard Serial NumberEntitybasaltEntityseismologyEntitysedimentary rockEntityCategoriesEarthquake engineeringSeismic magnitude scalesSeismologySeismology measurement