it is the country ' s first nuclear facility that currently concerns armenian industrial groups as well as those in related countries . twenty miles north of the capital yerevan , armenia ' s metsamor underground electricity plant was rebuilt in 1970s and has four vver - 440 - v230 nuclear pumps . metsamor , which currently production about 40 percent of the country ' s electric , is constructed in a earthquakes critical zone and was reopened even before the 1991 collapse of the eastern union because of the catastrophe dec . 7 , 1988 , earthquake in spitak .
Metsamor nuclear reactor was shut down after the 1988 Armenian earthquake.