Case Study, Training Toolkit

Produced by UNOCHA

Last updated 2014

Region Global


Hashtag Standards for Emergencies

This paper aims to inform emergency response agencies about using Twitter during disasters and developing a hashtag system for large-scale emergency monitoring through Twitter.

Hashtags allow researchers, emergency responders and affected community members to easily identify Twitter conversations related to a given topic. Typically, hashtags iteratively form as people join a digital conversation, and they sometimes evolve during an event. This tendency to categorize tweets helps responders identify conversations related to a given event (e.g., #CAR) or identify specific areas of need (e.g., #RescuePH).