几百次单个地震的震源机制解显示出以逆断层和正断层机制为主。

Focal mechanisms demonstrate that most are of thrust fault and next the normal.

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因此，这样长此以往，一部分断层似乎形成了自己的地震预防机制。

So given enough time, parts of the fault seem to develop their own earthquake prevention mechanism.

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如此说来，是震动了沿加利福尼亚圣安德烈亚斯断层带城市的相同机制触发了这次地震。

In this case, the shaking was triggered by much the same mechanism that shakes cities along California's San Andreas fault.

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