结果表明，震前的地震活动性表现出一定的异常。

The results show that there are some anomalies in seismicities before the earthquake.

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在震前的一次会议上，一些成员使公众确信没有任何的危险。

Following a committee meeting just a week before the quake, some members of the group assured the public that they were in no danger.

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做好震前的准备工作是提高风险管理水平、保证震后应急工作有效性的重要因素。

Doing well preparing work before earthquake strikes is an important factor for advancing level of risk management and ensuring validity of post-disaster emergency.

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