Spectrum magnitude of an earthquake is an important source parameter of earthquake size in seismology research.
谱震级是表征地震强弱的量度，是地震学研究中的一个重要的地震参数。
Spectrum magnitude is often related to the seismic prediction that is crucial in the study of seismic engineering.
在地震预测和工程地震研究中具有重要的实际意义。
Both seismological theory and macroseismic observation show that the shape of strong motion response spectrum depends mainly on magnitude, distance of epicenter and engineering site condition.
地震学理论和强震观测都表明，强震反应谱的形状主要取决于震级、震中距和场地条件。
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