一、震级、b值规律的提出与天文学的启示大小不同地震震级的分组比例关系,通常被称作b值规律。现在人们已经知道,当地震数目较少时,b值规律并不明显;测定震级的误差较大时,b值规律也不明显。只有当掌握的地震数目愈多,震级测定得愈精确,b值规律也愈显者。 First, the magnitude, b value law and astronomy enlightenment of different magnitude earthquake magnitude of the proportion of the group, usually referred to as b value law. Now people already know that when the number of earthquakes is small, the law of b value is not obvious. When the error of magnitude is large, the law of b value is not obvious. Only when the number of earthquakes mastered is more, the magnitude is more accurately measured and the law of b value is more obvious.