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一、震级地震和地下核爆炸而产生的短周期能量和长周期能量不同,意味着它们的体波震级M_b和面波震级Ms之间有系统差别。这是识别地震和地下核爆炸的最重要的方法之一。因此,尽可能准确地测定震级是很重要的事。在华盛顿从事地震和地下核爆炸认别工作过程中,我取得了关于震级的非常明确的概念。首先,我认为不少地震学家关于“一个地震只有一个震级”的说法是完全不正确的。一个地震有各种震级,而且这些震级可能都是正确的。因为,从不同方面测量地震能
First, the magnitude energy and the long-period energy produced by magnitude earthquakes and underground nuclear explosions are different, meaning that there are systematic differences between their body-wave magnitude M_b and the surface-wave magnitude Ms. This is one of the most important ways of identifying earthquakes and underground nuclear explosions. Therefore, it is important to measure magnitude as accurately as possible. In the wake of the earthquake and underground nuclear explosions in Washington, I made a very clear concept of magnitude. First of all, I think quite a few seismologists say that “there is only one magnitude of an earthquake” is completely incorrect. An earthquake has a variety of magnitudes, and these magnitudes may all be correct. Because, from different aspects of measuring seismic energy