On April 26, 1986
No.It was a nuclear disaster that happened in 1986
The Chernobyl Nuclear Disaster
The world's worst known nuclear disaster was at Chernobyl, in the Ukraine. The Chernobyl Disaster, as it is called, happened on April 26, 1986. There is a link to a Wikipedia article on this below.
this was rote by amandaTHE Chernobyl Disaster was caused by a reactor.
The Chernobyl Disaster happened on April 26, 1986 at 1:24 AM.
The Chernobyl disaster took place in 1986.
Chernobyl was the site of a nuclear power plant accident in 1986. According to Wiki, it was the worst disaster ever (and I seem to remember that being discussed that when it happened) and the only "level 7" disaster ever, whatever that means.
The Exxon Valdez disaster was the only one on your list that happened anywhere near Alaska.
The Chernobyl disaster is an example of a man made disaster.
There was no famous disaster (or anything else) at Chernobyl in Russia as there is no such place. However for the disaster that occurred in Chernobyl in the Ukraine, please see the related question.
The Chernobyl disaster released radioactive materials equivalent to about 100 megaelectronvolts (MeV) of energy.
The most affected towns were Chernobyl and Prypiat.