This event was first detected internationally by sensors in Forsmark. After this event, Anatoly Dyatlov was imprisoned for failing to follow safety procedures. (10[3])The city of (10[1])Slavutych (10[2]-5[1])was built to house the people who were evacuated due to this event. (10[2])Medals (10[1])were awarded to the “liquidators” who responded to this event. The New Safe Confinement replaced the concrete “sarcophagus” that was built around the location of this event that began (10[1])after the explosion of Reactor Number Four. For 10 points, name this disaster that occurred at a nuclear power plant near Pripyat in modern-day Ukraine. ■END■ (10[1])