Video encyclopedia

Chernobyl disaster


The Chernobyl Disaster: How It Happened


The Chernobyl Disaster: How It Happened


Chernobyl's 1986 disaster


Journey Inside Chernobyl’s Exclusion Zone | Short Film Showcase


Chernobyl Disaster: 30 Years Later

The Chernobyl disaster was a nuclear accident that occurred on 26 April 1986 at the No. 4 reactor in the Chernobyl Nuclear Power Plant, near the city of Pripyat in the north of the Ukrainian SSR in the Soviet Union. It is considered the worst nuclear disaster in history both in cost and casualties. It is one of only two nuclear energy accidents rated at seven—the maximum severity—on the International Nuclear Event Scale, the other being the 2011 Fukushima Daiichi nuclear disaster in Japan. The initial emergency response, together with later decontamination of the environment, involved more than 500,000 personnel and cost an estimated 18 billion Soviet rubles—roughly US$68 billion in 2019, adjusted for inflation.
  • Curiosity 

  • Works about disaster 

  • Reactor cooling after shutdown 

  • Safety test 

  • Test delay and shift change 

  • Unexpected drop of the reactor power 

  • Reactor conditions priming the accident 

  • Test execution 

  • Reactor shutdown and power excursion 

  • Steam explosions 

  • Fire containment 

  • Radiation levels 

  • Evacuation 

  • Official announcement 

  • Bubbler pools 

  • Foundation protection measures 

  • Debris removal 

  • Construction of the sarcophagus 

  • Investigations of the reactor condition 

  • Investigations and the evolution of identified causes 

  • Soviet criminal trial 1987 

  • INSAG-7 report 1992 

  • Positive void coefficient 

  • Control rod design 

  • Fizzled nuclear explosion hypothesis 

  • Release and spread of radioactive materials 

  • Relative isotopic abundances 

  • Water bodies 

  • Flora and fauna 

  • Human food chain 

  • Norway 

  • United Kingdom 

  • Acute radiation effects during emergency response and immediate aftermath 

  • Effects of main harmful radionuclides 

  • Assessment complications 

  • Disputed investigation 

  • Withdrawn investigation 

  • Abortions 

  • Cancer assessments 

  • Other disorders 

  • Long-term radiation deaths 

  • Socio-economic impact 

  • Long term site remediation 

  • Decommissioning of other reactors 

  • No. 4 reactor confinement 

  • Waste management 

  • Fuel-containing materials 

  • Exclusion zone 

  • Forest fire concerns 

  • Recovery projects 

  • Nuclear debate