Mysterious Power Outage Hits Major US City, Leaving Thousands in the Dark A sudden and widespread power outage has struck a major US city, leaving thousands of residents without electricity. The cause of the blackout is still unknown, but officials are working to restore power as quickly as possible. The outage has caused disruptions to daily life, with many businesses and public services affected. As the city struggles to get back on its feet, residents are left to wonder what caused the unexpected power failure.