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RiskMap is a real-time disaster coordination platform for sharing time-critical information between residents and government.


RiskMap harnesses the power of citizen reporting and social media to map time-critical information without needing to install any new applications or training. Currently operating in Indonesia, India, Japan, and the United States, this platform connects residents, who often have the best-localized information, with emergency managers to drastically cut down on response times. Through the live map, residents are also able to inform each other about dynamically changing situations in the city and help each other navigate to safety. The platform currently works with Twitter, Facebook, and Telegram and also visualizes real-time sensor information, such as changing water levels in flood gauges, monitoring wells, and pumping stations.

This platform was widely shared and used during high-intensity rainfall events in Jakarta on February 21, 2017, and over a quarter-million residents used the website to navigate the flooded city. The public map was also embedded in the Uber app for drivers to help them travel safely through the city. Similarly, in Chennai during a high-intensity single-day rainfall event on November 2, 2017, the website received 1152 page views a minute at its peak with a total of 111,808 page views in 24 hours. 

Current research work also focuses on extending the system beyond flooding to include multiple hazards types and developing custom decision support tools for the governments. We are actively working on integrating weather data and leveraging machine learning to automate outreach to inform residents to prepare before the peak of the storm, which enhances the two-way communication capabilities of this platform.



RiskMap Japan, supported by LINE Corp was piloted in Kumamoto, Japan, during the annual disaster drill day. This instance of the Riskmap project incorporates reporting cards for typhoons and road closures during emergencies.

In addition to public reporting RiskMap Japan also features a chatbot based system for shelter management. This innovative approach allows emergency managers to track and coordinate the evacuation shelter management process in realtime.

Project Video in Japanese


Miho Mazereeuw, Akinobu Murakami, Saeko Baird, Aditya Barve, Mayank Ojha, Evan Owens, Kenya Endo, Israel Macias, Christina Liao

United States

This project, supported by Broward County, had a beta-launch in October to respond to the flooding caused by Hurricane Irma. We will be working with Broward County to fully deploy for future hurricane-induced flooding as well as tidal and sunny-day flood occurrences in Broward County, Florida.


Miho Mazereeuw, Tomas Holderness, Mayank Ojha, Aditya Barve, Abraham Quintero, Matthew Berryman



This project - supported by TATA Center for Technology and Design at MIT is focused on urban hazards vulnerability of Indian cities. Currently operating in Chennai, Mumbai, Bangalore in addition to the state of Kerala, this platform gathers confirmed flood reports from social media and messaging platforms. These reports are then added to a publicly available map helping inform communities about the flood situation in real-time. This platform can also feed this crowd-sourced data to the Emergency Management Departments through a custom-built RED (Risk Evaluation Dashboard).


Miho Mazereeuw, Tomas Holderness, Mayank Ojha, Aditya Barve, Abraham Quintero, Manaasa Priyaa Dharmapuri Sridhar, Matthew Berryman


2016 - 2019

This project, supported by USAID, the Indonesia’s National Agency for Disaster Management and in collaboration with the Pacific Disaster Center at the University of Hawaii, allows residents to share vital flood information using social messaging apps. Confirmed flood reports are added to a publicly available map helping communities and emergency agencies to coordinate in real-time.

Operational in Greater Jakarta, Bandung, Surabaya and Semarang, the flood map feeds the crowdsourced data to emergency managers and PDC’s Disaster Management Early Warning platform called InAWARE through a custom-built REM (Risk Evaluation Matrix).

This proejct was handed over to Yayasan PetaBencana in 2019.


Miho Mazereeuw, Tomas Holderness , Etienne Turpin, Matthew Berryman [Across The Cloud], Mayank Ojha, Aditya Barve, Abraham Quintero, Manaasa Priyaa Dharmapuri Sridhar, Christina Geros

Yayasan Petabencana: Nashin Mahtani, Emir Hartato, Pritta Andrani Widyanarko, Dika Fadmastuti

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