moment magnitude scale

Definitions of moment magnitude scale
  1. noun
    a logarithmic scale of 1 to 10 (a successor to the Richter scale) that enables seismologists to compare the energy released by different earthquakes on the basis of the area of the geological fault that ruptured in the quake
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    type of:
    graduated table, ordered series, scale, scale of measurement
    an ordered reference standard
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