世界各地都发生过地震,其中大多数地震的级别都不高,并不为人所感知。但是,偶尔也会有特大地震发生,其震级之高,就连通常的震级标度都不够用了。比如2004年12月发生在印度洋的特大地震,引发了海啸,夺去了20万人的生命。科学家甚至认为,这次地震改变了地球惯常的平稳运动,在太空就能看到地球颠簸摇晃的情况。 Earthquakes have taken place in all parts of the world, most of which are not high-level and not perceptible. However, occasional earthquakes can occur, and their magnitudes are high, not even the usual magnitude scales. For example, a massive earthquake in the Indian Ocean in December 2004 triggered a tsunami that claimed the lives of 200,000 people. Scientists even think that the earthquake has changed the usual steady movement of the Earth, Earth can see in the space bumpy situation.