Based on the collection of the experiences and lessons from the network operation during the earthquake occurrence in fema and other organizations in usa , the countermeasures against the network system affected by the natural disaster or man - made hazards have been summarized 摘要根據(jù)收集的美國fema等機構有關地震中信息網(wǎng)絡運行的經(jīng)驗教訓資料,綜述了自然災害和人為事件對信息網(wǎng)絡系統(tǒng)沖擊的對策研究。