This paper analyzes characteristics of strong ground motion recorded during the August 24,2016,Italy MW6.2 earthquake.Regression analysis is used to obtain the amplitude attenua-tion of ground motion occurring during this earthquake.A comparison is then conducted with other models and attenuation characteristics are found to be in basic agreement with those of oth-er prediction equations;however,the far-field actual observed values are lower than those of pre-dicted values.The response spectra during different periods and with differing site conditions are subsequently calculated using a damping ratio of 5 %.Results show that large amplitude response spectra at four near-source stations are higher than the design response spectrum of the Europe seismic design code of 2008,and that peak values of response spectra are focused on a range be-tween 0 and 0.5 s.The earthquake caused relatively serious damage to Rieti,Italy,particularly to short-period structures;this is mainly because:(1)the earthquake was a shallow destructive e-vent and local buildings were built with un-reinforced bricks and cement;and(2)the seismic for-tification level was not high enough.In relation to these earthquake damage characteristics,it is evident that the central Italian region needs to improve seismic fortification during practical con-struction to ensure the security level of structures.%对意大利国家强震台网在2016年8月24日获得的其中部拉齐奥大区阿库莫利市发生的MW6.2 地震强震动三分向记录进行处理和分析.完成原始数据基线校正、滤波等基本数据处理,回归此次地震动幅值衰减规律,发现其整体与 ITA08及 BA08的衰减趋势一致,但远场实际值低于预测值,不同场地条件下的衰减特性与 ITA10一致,近震源幅值较大,且方向性明显;计算并回归分析几种持时,与全球经验预测方程均基本吻合;比较4个幅值较大的近震源台站的反应谱,发现其明显高于欧洲抗震设计规范中的设计反应谱.结合此次震害特点,该地区在实际建设中仍需提高抗震设防能力,以确保安全性等级.
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