AI-generated disaster hoaxes threaten Japan's social-media users after Kumamoto quake

The July 28 earthquake in Kumamoto triggered a flood of unverified content on social media, ranging from repurposed disaster footage to sensational videos and baseless forecasts of additional shocks. While platforms can aid rescue coordination, they also accelerate the spread of falsehoods, especially as generative AI now creates convincing scenes of collapsed buildings, fires and tsunamis in minutes. The technology produces not only still images but also video and audio that mimic news reports, eroding trust in genuine documentation.

Motivations have shifted beyond pranks to “impression farming,” where users monetize views or lure others to referral apps, capitalising on disaster-related fear. Well-meaning sharing by outsiders can amplify even a handful of false posts, forcing authorities to waste resources on verification and drowning out vital information. The author urges simple verification steps and calls on governments, media and platforms to pre-emptively debunk likely hoaxes, fostering “disaster prevention literacy.”