Summary of the studied emergencies and non-emergencies.

The columns provide the duration of the anomalous call activity (Fig. 1), the spatial decay rate (Fig. 2), the number of users in the event population , and the total size of the information cascade (Fig. 3). Events discussed in the main text are italicized, the rest are discussed in the supplementary material. ‘Jet scare’ refers to a sonic boom interpreted by the local population and initial media reports as an explosion.各列分别对应异常呼叫活动时长（图1）、空间衰减速率（图2）、事件关联用户群体的用户数量，以及信息级联（information cascade）的总规模（图3）。正文讨论的事件以斜体标注，其余事件均在补充材料中进行说明。‘喷气声恐慌（Jet scare）’特指被当地民众与初期媒体报道误判为爆炸事件的声爆（sonic boom）。