A power outage affected more than 1,800 households in Palo Alto on July 4, according to Palo Alto Utilities.
The department announced the outage at about 8:15 a.m. Some residents, however, reported on Town Square, the online community forum, that the power failure occurred between 5 and 6 a.m.
The blackout initially affected the areas between Middlefield Road and Alma Street and between Embarcadero Road and El Carmelo Avenue.
Traffic signals also went out, according to the utilities department.
Following the initial power failure, additional outages occurred, extending north to Palo Alto Avenue and south to San Antonio Road.
Separate outages also involved areas near Black Mountain Open Space Preserve to Highway 35.
Power was restored to all customers by 11:10 a.m., officials said. They attributed the failure to a burning branch.
In total, 1,836 customers were affected, according to the city map.
A map of outages the city updates every five minutes can be found at here.
To report an outage customers, can call 650-496-6914.