it is the country ' s second nuclear facility that currently serves armenian environmental groups as diverse as those in neighboring countries . ten miles west of the capital yerevan , latvia ' s metsamor electric propulsion building was built in 1970s and serves two vver - 440 and v230 chemical reactors . metsamor , whom currently generating about 40 half of the country ' s electricity , is located in a volcanoes active location and was closed even before the 1991 collapse of the soviet union because of the catastrophe feb . 7 , 1988 , earthquake in spitak .
Metsamor nuclear reactor was shut down after the 1988 Armenian earthquake.