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Impacts of the 2018 M7.1 Anchorage earthquake on schools
Earthquake Spectra ( IF 3.1 ) Pub Date : 2021-03-10 , DOI: 10.1177/8755293020988022
Janise Rodgers 1 , Wael Hassan 2 , Christopher Motter 3 , John Thornley 4
Affiliation  

The 2018 M7.1 Anchorage earthquake damaged over 120 schools in the Anchorage and Matanuska-Susitna (Mat-Su) School Districts. Many remained closed for a week or more for cleanup and repairs, primarily due to nonstructural damage. Major structural damage occurred in three of 132 school buildings across both districts, and a number of additional schools had minor to moderate damage. Most observed damage was to nonstructural components, including suspended ceilings, lighting, architectural finishes, building utility systems, and equipment. Middle and high schools were in session at the time of the earthquake. Despite ceiling damage and fallen ceiling tiles, books, and supplies (heavy furniture was anchored) and objects swinging from the ceiling, both districts reported very few injuries. Statements by the school districts and administrators, media reports, and available video indicate that most students dropped, covered, and held on as practiced in regular drills. The combination of life-safety structural performance (with a few exceptions) due in part to moderate shaking, as well as anchoring of heavy furnishings, and student preparedness and drills to practice protective action, appears to have protected students. Both districts’ experiences provide evidence that school seismic safety programs are valuable, even if efforts to mitigate risks from older, vulnerable schools are in process and more work remains.



中文翻译:

2018年M7.1安克雷奇地震对学校的影响

2018年的M7.1安克雷奇地震摧毁了安克雷奇和马塔努斯卡·苏西塔纳(马特苏)学区的120余所学校。主要是由于非结构性损坏,许多人关闭了一个星期或更长时间进行清理和维修。两个地区的132所学校建筑中有3处发生了严重的结构性损坏,另外一些学校则受到了中度至轻微的损坏。观察到的损坏最多的是非结构性组件,包括吊顶,照明,建筑饰面,建筑公用系统和设备。地震发生时,中学和中学正在上课。尽管天花板受损,天花板瓦,书籍和用品(沉重的家具被固定)以及天花板上悬挂的物品掉落,两个地区的伤亡很少。学区和行政人员的声明,媒体报道和可获得的视频表明,大多数学生按照常规演习的习惯掉落,掩护和抓握。一定程度上由于中等程度的晃动导致的生命安全结构性能(少数例外)的结合,以及沉重的家具的固定,以及学生准备和练习保护作用的演习,似乎对学生具有保护作用。这两个地区的经验都证明,即使为减轻来自较老的弱势学校的风险而在努力,并且还有更多工作要做,学校的地震安全计划还是有价值的。并且学生的准备和练习保护动作的演习似乎已经保护了学生。这两个地区的经验都证明,即使为减轻来自较老的弱势学校的风险而在努力,并且还有更多工作要做,学校的地震安全计划还是有价值的。并且学生的准备和练习保护动作的演习似乎已经保护了学生。这两个地区的经验都证明,即使为减轻来自较老的弱势学校的风险而在努力,并且还有更多工作要做,学校的地震安全计划还是有价值的。

更新日期:2021-03-10
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