Publicly available video recordings of the explosion in Beirut on August 4, 2020, were examined and from them it was possible, in conjunction with the well‐known Google Maps website, to obtain estimates for the locations of the observers’ cameras with respect to the blast, and estimates for the blast wave arrival time. A publicly‐available blast wave calculator was then used to estimate the size of the explosion in terms of the equivalent quantity of TNT that would produce the same blast wave arrival time at the observers’ distance. This work estimates the Beirut explosion to have been equivalent to 637 tons TNT, with a lower bound estimate of 407 tons and an upper bound estimate of 936 tons.

中文翻译：

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使用公开可用的工具和数据估算贝鲁特港口爆炸的TNT等效炸药净量（NEQ）

审查了2020年8月4日贝鲁特爆炸的公开视频记录，并与知名的Google Maps网站一起从中获得了有关观察者摄像机相对于卫星位置的估计值。爆炸，并估算爆炸波的到达时间。然后使用一个公开提供的爆炸波计算器，以相当于TNT的等效量来估算爆炸的大小，TNT的等效量将在观察者距离处产生相同的爆炸波到达时间。这项工作估计贝鲁特爆炸相当于637吨TNT，下限估计为407吨，上限估计为936吨。