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蠢蠢欲动的活断层虽然最早形成的圣安德烈斯断层区段距今约3000万年,但是至今都在不停地活动着。地质学上称这种在人类历史时期或近期地质时期曾经活动过、正在活动、未来一定时期内仍可能发生活动的断层为活断层。活断层带往往是地震发生时破坏最严重的区域,也是隧道建设和水利建设等工程的地质危害区域,其损失程度均明显大于断层两
Just around the corner of the active fault The San Andreas Fault Zone was first formed about 30 million years ago, but so far has been active. Geologically, this kind of fault, which has been active in the history of mankind or during the recent geologic period and is still active and may still be active in a certain period of time in the future, is regarded as a living fault. The active fault zone is often the area with the most serious damage at the time of the earthquake. It is also a geological hazard area for tunnel construction and water conservancy construction. The damage extent is obviously greater than that of the fault two