India’s SACHET Public Warning System: A Case Study in Mobile Alerting

Timely and effective early warning systems (EWS) are critical for reducing the risks of disasters and saving lives. With 96% of the global population now covered by a mobile network, mobile-based EWS have become a vital tool for disseminating alerts at scale. However, the effectiveness of these systems depends on their design, deployment and operational efficiency.

This report presents a case study of India’s SACHET public warning system – a valuable model for other countries seeking to enhance their public alerting capabilities. SACHET is designed to provide fast, reliable and scalable disaster alerts via mobile networks. This report focuses on the design and implementation of India’s SACHET public warning system.