When this stress is released quickly, it sends massive vibrations, called seismic waves, often hundreds of miles through the rock and up to the surface.
当地震发生的时候，地震波会通过岩石从数百里外传达到地表引起振动。
In deeper waters, waves traveling in nearly opposite directions create a pulse that travels all the way to the ocean floor and causes new vibrations that can travel long distances.
而在较深的海域，波浪逆向流动相互撞击，由此产生的脉冲力能一直传递到海底，它所引起的震动能够传到很远的距离之外。
A cellphone set to vibrate can be sensed by the skin of the hand, and the phone's ringtone generates sound waves - vibrations of air - that move the eardrum.
手机的震动能够被手部皮肤感知，手机铃声也要靠产生声波—声音的震动，然后引起鼓膜震动，我们才能听到铃声。
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