Understanding how populations move and react to disaster events has they happen has long been one of the most serious operational and data challenges facing emergency responders. A potential answer to this challenge is now being published by Facebook through their Disaster Maps program. Through the use of anonymized and aggregated location data on Facebook users, non-governmental disaster response agencies can now ask new types of questions about the ways that large populations behave in real time during disasters. Direct Relief has been using Facebook Disaster Maps since late 2017 to improve health sector response activities including situational assessment, resource allocation and post-disaster displacement analysis. This talk will articulate some of the ways that Facebook Disaster Maps can improve disaster response through the example of how Direct Relief has applied Facebook’s data to response events both in the US and internationally. -------------------------------------------------------------------------------------------------------------------------- Follow us on Social Media! Twitter: https://twitter.com/Esri Facebook: https://facebook.com/EsriGIS LinkedIn: https://www.linkedin.com/company/esri Instagram: https://www.instagram.com/esrigram The Science of Where: http://www.esri.com