China's Earthquake Early Warning System Covers Over 400 Million People

China's national earthquake intensity rapid reporting and early warning engineering public service system has reached initial readiness, now encompassing over 400 million people, with mobile warning users surpassing 228 million.

The system's construction began after the national project's full completion two years ago. It has rapidly expanded across multiple channels and is currently available in 13 provinces, including Yunnan and Sichuan. The earthquake early warning service has deployed over 100,000 terminals and reaches more than 70 million households through broadcast services. Additionally, six million users engage with a WeChat mini-program for alerts.

Mobile devices have become paramount in the warning system due to their widespread adoption and immediacy. The service provides real-time, precise early warnings directly to over 228 million mobile phone users. This technology has proven valuable in several significant seismic events, offering crucial seconds for response. For instance, during a 6.0 magnitude earthquake in Xinjiang in December 2025, warnings arrived over 20 seconds before the main tremors, aiding a surgical team's preparation.

The WeChat mini-program, launched in August 2024, has been a key tool for information dissemination and received recognition for its public service contributions. It has successfully delivered warnings during multiple earthquakes. The system's capability to reach large populations swiftly has been demonstrated in several instances, such as during a May 2026 earthquake in Guangxi province where multiple display phones in a retail store simultaneously sounded alarms.