fault earthquake

例句：

1. 1.The fault in the earth's crust caused this earthquake.
   地壳中的断层引发了这场地震。
2. 2. Earthquakes can be caused by natural or man-made factors.
   地震可以由自然或人为因素引发。
3. 3.Fault lines are often associated with areas prone to earthquakes.
   断层线往往与容易发生地震的地区相关联。