What happened at the Fukushima Daiichi Power Plant?
Posted on Jan 16, 2026 / Travel
The Fukushima Daiichi Nuclear Power Plant was severely damaged in March 2011 after a huge 9.0-magnitude earthquake triggered a massive tsunami that knocked out power and cooling systems. With the emergency generators flooded, three reactors overheated and suffered meltdowns, which led to releases of radioactive material into the environment. The sequence of failures and the flooding was a drastic example of how natural disasters can test man-made protections at nuclear plants. The plant’s operator, Tokyo Electric Power Company (TEPCO), and international agencies have since worked on stabilizing and cleaning up the site. It became one of the worst nuclear accidents in history by international safety ratings. Since then, scientists and engineers have been monitoring conditions and planning long-term efforts to deal with melted fuel and contamination. The disaster pushed major changes in nuclear safety policies around the world.
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