More than 150,000 people were forced to flee their homes following the Fukushima nuclear disaster in Japan in March 2011, turning once-bustling cities into eerie ghost towns almost overnight. Families fled with only the essentials, believing they would soon return, but many never returned. In the rush to escape the radiation, thousands of pets and farm animals were left behind with little hope of survival. As days turned into months, they wandered across empty roads and deserted fields in search of food and their owners. Amidst the devastation, one resident made an extraordinary decision: He returned to the exclusion zone to care for forgotten animals.
Who is it naoto matsumura The man who returned after Fukushima nuclear Disaster?
Naoto Matsumura is a resident of Tomioka, a city located within the evacuation zone surrounding the Fukushima Daiichi Nuclear Power Plant. Like thousands of others, he initially moved in after the government ordered residents to evacuate. However, they soon realized that along with their own animals, thousands of other animals had also been abandoned. Unable to ignore his suffering, Matsumura returned to the exclusion zone. What started as a mission to care for their pets soon became a lifelong commitment to helping every animal.
What happened during the Fukushima nuclear disaster?
On March 11, 2011, a magnitude 9.0 earthquake struck off the northeast coast of Japan, generating a massive tsunami. Waves more than 14 meters high overwhelmed the Fukushima Daiichi nuclear power plant, disabling its cooling system and causing three reactors to malfunction. The hydrogen explosions released radioactive material into the surrounding atmosphere, leading to one of the largest evacuations in Japan’s history. More than 150,000 residents were ordered to leave their homes, and a 20-kilometre exclusion zone was established around the damaged plant.

thousands of animals left behind
Emergency evacuation prioritized human life, leaving little time to rescue pets or transport livestock. Many dogs and cats were trapped inside homes, while cattle, horses, pigs, and chickens were left in deserted fields without food or water. Some owners believed they would be allowed back within a few days, but longer periods of time out meant many animals were left to fend for themselves. Later investigation found that many of the animals had died of hunger or dehydration, while others roamed the abandoned cities in search of food and their missing owners.
A daily mission inside the exclusion zone
Matsumura dedicated his life to feeding and caring for the remaining animals. Every day, he walked through deserted roads carrying sacks of animal feed, water and supplies. He also cared for abandoned dogs, stray cats, cattle, horses, pigs, and even ostriches from a nearby farm. Some frightened animals gradually learned to trust him, while others simply stayed near him after receiving food and care. Despite limited electricity, scarce resources and the constant challenges of living inside the exclusion zone, they continued their work without expecting recognition.
Was it safe to live in the exclusion zone?
There was real risk in living inside the exclusion zone as radiation levels were much higher than normal in many places after the accident. Matsumura conducted regular health monitoring to measure his radiation exposure. Although their accumulated dose was higher than that of the general public, medical experts reported that it remained much lower than many people expected, partly because they spent most of their time outdoors rather than in heavily contaminated buildings. Matsumura has often said that he accepted the risk because he believed that the animals had no one else to help them.
support came slowly
In the early days, Matsumura relied largely on his determination and limited supplies. As their story spread through newspapers, documentaries, and social media, volunteers, veterinarians, and animal welfare organizations began supporting their efforts. Donations of animal feed, medicine, protective equipment and food made it possible for them to continue caring for hundreds of animals over the following years. His remarkable commitment has earned him international praise and the nickname “Guardian of Fukushima’s animals.”
Legacy of Fukushima’s protector
Although many evacuation orders have since been lifted and some residents have returned, Fukushima’s recovery continues more than a decade after the disaster. Matsumura’s actions have become a symbol of compassion amid one of the world’s worst nuclear disasters. Their story has also inspired discussion about including pets and livestock in disaster evacuation planning so that future emergencies do not leave animals behind. In a landscape marked by loss and destruction, their unwavering dedication remains a reminder that even in the darkest moments, kindness can prevail.
