The Fukushima Dai-ichi nuclear accident is a series of incidents, including four separate explosions, that took place at the Naraha nuclear power plant in Fukushima Prefecture, Japan, following the Tōhoku earthquake and tsunami on March 11.

This information paper describes in detail the causes of the nuclear accident at Fukushima Daiichi in March 2011 and the … The Fukushima nuclear facility was a nuclear power plant to convert nuclear energy into electrical energy. Analysis after the event, however, found no damage to the reactor systems. In 1995, the closest nuclear power plants, some 110 km north of Kobe, were unaffected by the severe Kobe-Osaka earthquake, but in 2004, 2005, 2007, 2009 and 2011 Japanese reactors shut down automatically due to ground acceleration exceeding their trip settings. Fukushima Daiichi Accident (Updated May 2020) Following a major earthquake, a 15-metre tsunami disabled the power supply and cooling of three Fukushima Daiichi reactors, causing a nuclear accident on 11 March 2011. 2005 Miyagi earthquake. A major earthquake on 11 March 2011 caused a 15-metre tsunami to strike the Fukushima Daiichi nuclear power plant on Japan's Tohoku coast, disabling the power supply and heat sinks, thereby triggering a nuclear accident. The Onagawa Nuclear Power Plant was affected by the 2005 Miyagi earthquake and recorded vibrations above what the plant was designed for. Fukushima accident, disaster that occurred in 2011 at the Fukushima Daiichi (‘Number One’) nuclear power plant on the Pacific coast of northern Japan, which was caused by a severe earthquake and powerful series of tsunami waves and was the second worst nuclear power accident in history. 2011. READ MORE > Fukushima Daiichi Accident.