The moment magnitude scale measures the total energy released in an earthquake and it describes large earthquakes more accurately than does the Richter scale. 力矩量级可以测量地震释放的总能量,并且用它来描述大地震比用里氏震级要精确得多。
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