【摘要】 分析了陕西周至及附近的地震活动及有感地震的等震线特征，认为该区以孤立型小震或小震群活动为主，在较大范围内，地壳应力还是处于调整状态，近期发生中强以上地震的可能性不大。更多还原

【Abstract】 The seismicity and the feat ures of the isoseismic line of felt earthquake in Zhouzhi and its surroundingare analyzed,it is found that isolated small earthquake and small swarm activity are dominative in this area,the crustal stress is situated at adjustment state in larger range,the probability of moderate earthquake occur-ring is not too large in recent time.更多还原