This paper highlights the principal features of the M_w5.4 Zagreb earthquake. Located within the city limits at a depth of 10 km, the earthquake generated a peak ground acceleration of more than 0.2 g and a maximum spectral acceleration of about 0.6 g at 0.1 s in the historic downtown area. The situation was particularly challenging since the event occurred amid a partial Covid-19 lockdown at temperatures close to 0 °C, emphasizing the extensive and complex vulnerability of the local communities and individuals. 27 people were reported severely injured, one of which later died. The surprisingly high economic costs, needed to achieve a full reconstruction of damaged buildings and infrastructure in the affected area, are currently evaluated at more than 10B euros. Description of the organization of the emergency response in the first days and the observed damage to buildings is given with typical examples. The focus is on the performance of older masonry residential and cultural heritage buildings in the historic downtown, their inspection and evaluation of damage to structural and non-structural components. This information provides the basis for understanding of the negative impacts and clarifies the overall context identifying the enablers and barriers to the still ongoing recovery process. It also helps to increase the awareness of the seismic vulnerability of European cities with similar construction practices.

本文重点介绍了 M _{w的主要特点}5.4 萨格勒布地震。地震位于市区范围内 10 km 深度，在历史悠久的市区产生了超过 0.2 g 的峰值地面加速度和 0.1 s 的最大光谱加速度约 0.6 g。由于该事件发生在接近 0°C 的部分 Covid-19 封锁期间，因此情况尤其具有挑战性，突显了当地社区和个人的广泛而复杂的脆弱性。据报道，有27人受重伤，其中一人后来死亡。对受影响地区的受损建筑物和基础设施进行全面重建所需的高昂经济成本目前评估为超过 10B 欧元。用典型例子描述了第一天应急响应的组织情况和观察到的建筑物损坏情况。重点是历史悠久的市中心的旧砖石住宅和文化遗产建筑的性能，以及对结构和非结构部件损坏的检查和评估。该信息为理解负面影响提供了基础，并阐明了确定仍在进行中的恢复过程的促成因素和障碍的整体背景。它还有助于提高对具有类似建筑实践的欧洲城市的地震脆弱性的认识。他们对结构和非结构部件的损坏进行检查和评估。该信息为理解负面影响提供了基础，并阐明了确定仍在进行中的恢复过程的促成因素和障碍的整体背景。它还有助于提高对具有类似建筑实践的欧洲城市的地震脆弱性的认识。他们对结构和非结构部件的损坏进行检查和评估。该信息为理解负面影响提供了基础，并阐明了确定仍在进行中的恢复过程的促成因素和障碍的整体背景。它还有助于提高对具有类似建筑实践的欧洲城市的地震脆弱性的认识。