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Data sets Publications Expeditions Thesaurus
magnitude  search
UFearthquake magnitude
RTearthquakes
 seismic intensity
 scale factor
 intensity
 modified Mercalli scale
 Richter Scale
SNAs of 1981, restricted to magnitude of earthquakes.
magnitude-frequency ratio  search
RTearthquakes
 seismology
SNAdded to Thesaurus in 1981.