【摘要】 通过区域和近场区地震活动性分析、地震构造环境评价，研究远源地震和近源地震活动水平，评价区域中强地震发生条件。开展近场区断裂调查和活动性鉴定，探明活动断层展布、规模与最新活动时代。基于断层破裂长度与震级经验关系，计算活动断层最大潜在震级，提出活动断层避让范围，评判场址地震断层位错效应，为福州市重大工程选址和活动断层避让提出一套方案。更多还原

【Abstract】 Through regional and near-field seismic activity analysis and seismic tectonic environment evaluation,the activity level of far-field earthquakes and near-field earthquakes was studied,and the occurrence conditions of moderate-strong earthquakes in the region were evaluated. In this paper,the fault investigation and activity identification in the near field area were carried out to explore the distribution,scale and latest activity era of active faults.Based on the empirical relationship between fault rupture length and magnitude,the maximum potential magnitude of active faults was calculated,the setback distance for the active faults was proposed,and the dislocation effect of seismic faults at the site was evaluated. A set of plans for site selection and active fault avoidance of major projects in Fuzhou City is proposed.更多还原