“…In particular, SNS offer new ways for people to participate during crisis events, including seeking local and timely information, quickly activating their social networks, and making these efforts more visible. These features enable a new form of citizen journalism and active public participation during various crisis events [38], such as earthquakes (e.g., [43,70,88]), floods (e.g., [5,77,79]), terrorist attacks (e.g., [10,14,51]), hurricanes (e.g., [20,44,58]), and campus shootings (e.g., [27,46,79]). Different SNS are used in crisis-related communication, such as popular SNS like Facebook and Twitter but also more specific crisis-related platforms like Ushahidi [72].…”