Radio Emerges as Top Preferred Method for Emergency Warning Delivery
Radio remains the most reliable method for emergency warnings, according to Sharad Sadhu, a senior official at the International Telecommunication Union (ITU), as reported by RadioInfo Asia. Sadhu emphasized that radio’s ability to reach remote and underserved populations during crises like natural disasters or pandemics makes it irreplaceable compared to digital alternatives. His remarks were made during a panel discussion on global communication infrastructure hosted by the ITU in Geneva on March 15, 2024.
The ITU’s stance aligns with findings from a 2023 study by the United Nations Office for Disaster Risk Reduction (UNDRR), which noted that radio broadcasts achieved 87% coverage in rural regions during the 2022 floods in South Asia, far exceeding the 34% reach of mobile alert systems in the same area. Sadhu cited this data, stating, “Radio’s simplicity and resilience in power outages or network failures ensure it remains a lifeline for communities without internet access.”

Emergency response agencies in countries like Japan and the Philippines have long relied on radio for alerts. In Japan, the Japan Meteorological Agency (JMA) uses AM/FM radio to broadcast typhoon warnings, a system credited with reducing casualties during the 2023 Kyushu floods. Similarly, the Philippines’ PAGASA weather agency integrates radio alerts into its disaster preparedness protocols, according to a 2024 report by the Asian Disaster Preparedness Center. These examples underscore radio’s role in regions where mobile connectivity is unstable.
Despite the rise of mobile notifications, experts warn that digital systems face limitations. A 2023 analysis by the World Health Organization (WHO) found that during the 2022 Ebola outbreak in the Democratic Republic of Congo, mobile alerts failed to reach 60% of affected rural areas due to poor network coverage. In contrast, radio broadcasts distributed by local stations achieved near-universal reach, according to a WHO field report. Sadhu noted, “Radio doesn’t require user consent or device ownership, making it universally accessible.”

The ITU’s guidelines, updated in 2023, now prioritize radio infrastructure in emergency communication frameworks. The organization has partnered with 12 African nations to upgrade broadcast networks, aiming to enhance coverage by 2025. However, funding remains a challenge. A 2024 audit by the European Commission revealed that 40% of low-income countries lack sufficient radio transmitters to meet ITU standards, leaving millions without reliable emergency alerts.
As climate-related disasters intensify, the debate over communication methods continues. While some advocate for hybrid systems combining radio with mobile alerts, Sadhu argued, “Radio’s reliability in extreme conditions makes it non-negotiable.” The ITU plans to release a comprehensive report on emergency communication strategies later this year, which will include recommendations for integrating radio into national disaster response plans.