This article has been reviewed according to Science X's editorial process and policies. Editors have highlighted the following attributes while ensuring the content's credibility: On a hot, gusty day in January 2003, I found myself on the hill behind my Canberra home, watching as billows of black smoke rolled through neighboring suburbs. Many of my friends and family members were left scrambling during the Canberra wildfires of 2003, which destroyed almost 500 homes and claimed the lives of four people.
This summer, Australia is bracing for what could be a challenging fire season. The official spring outlook warns of a "heightened risk of fire" across many states and territories, driven by a combination of dry conditions and increased fuel loads. Following the cataclysmic Black Summer wildfires, the 2020 Royal Commission identified disaster communication as a persistent challenge.
It recommended making disaster information more tailored and consistent. The revised national Australian Fire Danger Rating System activates on days with high fire risk and encourages people to monitor conditions and official sources for warnings. But my research suggests informal communication channels are just as important.
For decades, Australia's emergency authorities have relied on a traditional crisis communication model—agencies send messages and the public receives them. The 2020 Royal Commission underscored communication as a key concern, calling for improved information flow from officials to the community. However, my conversations with disaster survivors reveal people aren't just passive recipients.
They find, verify and share information through their networks to understand and respond to emergencies—behaviors official agencies often don't see. My research examines how communities actively build their own disaster communication networks alongside, and sometimes in place of, formal emergency management channels. I focused on three specific disasters: I interviewed 19 community members, who told me who they relied on for information.
I call these people "information intermediaries." They didn't just share messages but translated official, and often complex, warnings and information into locally relevant guidance. These community members also bridged technological gaps, turning to tools such as face-to-face conversations and phone trees. This allowed them to get information to those without access to technology and keep communication channels open when technology failed.
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