Insights and CommentariesGlobal RiskRisk Literacy and Education

The value of understanding public risk perceptions and effective risk communication

3 December 2025

In March 2011, a massive earthquake and subsequent tsunami struck the Tohoku region of Japan. The disaster resulted in significant loss of life and damage to infrastructure, including the Fukushima Daiichi Nuclear Power Plant.

Japan’s well-developed early warning system was instrumental in notifying the public about the impending tsunami. The Japan Meteorological Agency (JMA) issued warnings mere minutes after the earthquake, using television, radio, and mobile alerts to reach millions of people quickly. This immediate communication allowed many to evacuate to higher ground, saving countless lives.

The information provided was clear and actionable, focusing on immediate steps people should take to protect themselves, such as evacuation routes and locations of emergency shelters.

Despite the severity of the situation, the effective risk communication and preparedness measures in place helped mitigate the impact and significantly contributed to the survival and safety of many individuals during the critical moments following the earthquake and tsunami.

The quick and decisive action by the JMA is just one of the many examples of the value of effective risk communication. There are also many other examples where a risk communications strategy was lacking which resulted in preventable losses of life.

At its core, risk communication involves conveying information about risks in a way that is clear, accurate, and actionable.

Some key principles include:

  • Clarity and simplicity: Keeping messages simple, avoiding jargon and using relatable examples to demystify complex issues.
  • Transparency and honesty: Openly sharing what is and isn’t not known about a risk helps to build credibility. Admitting uncertainties or knowledge gaps can actually enhance trust rather than diminish it.
  • Engagement and dialogue: Risk communication should be a two-way street. Engaging the public in dialogue and allowing them to voice their concerns leads to more effective communication strategies and solutions that are community-driven.

In the case of Japan, which has a long history of earthquakes, the government has invested heavily in public education about disaster preparedness. Regular drills, education in schools, and public awareness campaigns mean that citizens know how to respond quickly and effectively when warnings are issued.

Another element to effective risk communication is understanding how the public perceive risks. Whether it’s the threat of climate change, a global pandemic, or technological advancements that redefine privacy and security, understanding how individuals and communities react to and feel about certain risks will play a big part in what communication messages are developed.

Consider the global response to COVID-19. Governments and health organisations worldwide faced the unprecedented challenge of communicating evolving scientific information to diverse populations. The varying success of these efforts highlight the critical role of understanding and addressing public risk perceptions. Countries that effectively engaged with and educated their citizens often saw better compliance with public health measures.

Similarly, climate change communication has evolved to not only present facts but also to connect with individuals on a personal level, emphasising the immediate relevance of climate actions to their lives and communities.

In a world increasingly characterised by complex challenges and uncertainties, understanding public risk perceptions in order to carry out effective risk communication have become crucial components in building societal resilience.

Appreciating the value of public risk perceptions and mastering the art of risk communication are essential for navigating the complexities of today’s world. As individuals, organisations, and governments, we must strive to listen, engage, and inform, fostering a culture of understanding and preparedness. By doing so, we build more resilient societies capable of facing the challenges of tomorrow.