Emergency ad hoc device communication monitoring

The disclosed technology is directed towards presenting communications data to a responding entity that are relevant to an emergency situation at an emergency location. The communications data can be obtained from communications (e.g., text messages, transmitted video, voice calls and the like) that involve at least one user device at the situation, including communications that do not involve the responding entity. Users may opt in to such an emergency service to allow access to their communications, whereby their device locations are tracked and known in the event of an emergency. Upon obtaining the communications data, a responder can receive a view of the scene augmented with the communications data. The view can include a three-dimensional and/or two-dimensional representation of the zone/area of the emergency situation. Filtering can be used to eliminate irrelevant communications, and summarization can be used to combine generally redundant communications.