Chernobyl Nuclear Disaster

1986 CE · disaster

On 26 April 1986, an explosion and fire that occurred during a test in reactor number 4 of the Chernobyl Nuclear Power Plant in Ukraine, then part of the Soviet Union, led to one of the most severe nuclear accidents in history.

A large amount of radioactive material was released from the reactor into the atmosphere; the town of Pripyat and its surroundings were evacuated. The radioactive fallout affected a large part of Europe. The disaster caused international debates over nuclear safety and the Soviet administration's sharing of information.

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Frequently asked questions

What was Chernobyl Nuclear Disaster?
On 26 April 1986, an explosion and fire that occurred during a test in reactor number 4 of the Chernobyl Nuclear Power Plant in Ukraine, then part of the Soviet Union, led to one of the most severe nuclear accidents in history.
When did Chernobyl Nuclear Disaster happen?
1986 CE