一、波动 地震波是一种由地震震源发出,在地球内部传播的波。 我们在日常生活中比较熟悉的波是水波,或者确切地说,是在水面上传播的“重力波”。我们之所以对水波比较熟悉,究其原因是人类动作的速度和水波传播速度差不多,人类动作的幅度和水波的幅度差不多,而且人类的身体的大小又与水波的波长差不多。这三个“差不 First, the wave is a seismic wave sent by the earthquake, spread within the Earth’s wave. The waves we are more familiar with in our daily life are water waves or, more precisely, “gravity waves” that propagate on the water. The reason why we are familiar with water waves is that the speed of human actions is similar to that of water waves. The magnitude of human actions is similar to that of water waves, and the size of human bodies is similar to the wavelength of water waves. These three "bad