A mysterious explosion rocked the Hoover Dam around 10 a.m. PDT on Tuesday morning and the fiery plume was caught on bystander video. Officials confirmed the fire was extinguished approximately 30 minutes after the explosion took place. Twitter user Kristy Hairston first posted the video that began circulating Twitter. “Touring the #hooverdam and heard an explosion,” she said. https://twitter.com/kristynashville/status/1549441916000825344 Nearby Boulder City Fire Department confirmed shortly after that emergency responders were en route to “an emergency call at Hoover Dam.” However, the department said the fire was extinguished before responders could arrive on scene. https://twitter.com/BoulderCityNev/status/1549455201676931072 An additional video circulating social

Source: Videos: Mysterious explosion rocks Hoover Dam