The explosion and fire spread radioactive particles across a wide swath of the countryside in the Ukraine and neighboring Belarus, rendering it unsafe for residents and for animal life. Radiation levels have slowly decreased allowing some areas to be inhabited again.
In the disaster, which occurred in April, 1986, the reactor vessel containing nuclear fission material was ruptured, and smoke and steam carried particulates downwind from the plant. The reactor core suffered a catastrophic meltdown and began to sink into the earth. It stopped before escaping the basement areas of the reactor, but potentially could reheat under some circumstances. Only a huge concrete barrier has contained it for a period of time, and this will have to be reinforced and kept in place for hundreds of years to prevent the material from further escaping into the environment.
The Chernobyl explosion occurred on April 26, 1986.
No. Chernobyl is in Russia.
At the power plant at Chernobyl in the Ukraine
When and what explosion? One of the nuclear test shots. If so which?Remember Chernobyl was not a nuclear explosion, it was a steam explosion and graphite fire.
The nuclear plant explosion of 1986
Yes, it did.
1986, the same year as the Challenger Space Shuttle explosion.
Chernobyl
The Chernobyl disaster involved a series of explosions, with the most significant being two main explosions that occurred on April 26, 1986, in Reactor No. 4 of the Chernobyl Nuclear Power Plant. The first explosion was a steam explosion caused by a sudden power surge, followed by a second, more powerful explosion due to the release of hydrogen gas. These explosions resulted in the catastrophic release of radioactive materials into the environment.
The bombs dropped in Japan were designed to produce a large nuclear explosion which produced heat and blast waves. At Chernobyl an operating reactor lifted its top off due to a surge in pressure, and this flung out radioactive debris, not as a result of a nuclear explosion but due to mechanical forces. There was approx. 400 times the amount of radiation released from Chernobyl than there was from the two bombs dropped on Japan.
The Chernobyl disaster in 1986 involved a nuclear reactor that used uranium-235 as its fuel. This radioactive fuel contributed to the catastrophic explosion and subsequent release of radioactive materials into the environment.
I believe your mistaking Russia with Ukraine in which case it would be Chernobyl. Hope that's it.