Crews have restored power to 7,062 customers in the Queen Anne and Magnolia neighborhoods. About 6,081 are still without electricity.
The outage started at about 4:10 p.m. It was caused by a breaker failure at a distribution substation.
For approximate outage boundaries, visit www.seattle.gov/light.
Seattle City Light is the 10th largest public electric utility in the United States. It has some of the lowest cost customer rates of any urban utility, providing reliable, renewable and environmentally responsible power to nearly 1 million Seattle area residents. City Light has been greenhouse gas neutral since 2005, the first electric utility in the nation to achieve that distinction.