Fear often spreads faster than facts, especially online, as shown by the recent alarm sparked by former manga artist Ryo Tatsuki’s dream-based prediction of a catastrophic tsunami in July 2025. Tatsuki, who gained fame after her 1999 manga The Future I Saw was thought to have foretold the 2011 tsunami, now claims a massive wave will strike a diamond-shaped region including Japan, Taiwan, Indonesia, and the Northern Mariana Islands. Though her vision lacks any scientific basis, it has gone viral, fueling widespread anxiety and even affecting travel behavior. Some agencies report up to a 50% drop in bookings for Japan, with ripple effects felt in airlines and the hospitality sector.

Despite her rising mystique—sometimes compared to the controversial seer Baba Vanga—many of Tatsuki’s so-called predictions have been debunked. Several claims, such as her alleged foretelling of COVID-19, are either false or plagiarized, including one lifted from a Dean Koontz novel. Others may originate from impersonators, further weakening her credibility. Japan’s Meteorological Agency and scientific experts emphasize that there is no unusual seismic activity and that credible earthquake predictions require data—not dreams. Even Tatsuki herself has urged the public not to panic. Ultimately, Japan remains safe, and decisions should be guided by verified information rather than fear-fueled speculation.