A major component of Capitol Hill’s utility infrastructure failed in the wilting summer heat Thursday night but was quickly brought back online by Seattle City Light. Central District News reports that an explosion occurred at the Pine Street substation on 23rd Ave sometime around 6:15 PM. Residents and business on Capitol Hill, First Hill and in the Central District were without power for between 30 to 90 minutes depending on location.

Here is the preliminary post from City Light about the incident:

Two feeder lines at City Light’s Capitol Hill East Pine substation have failed, cutting power to 9,300 customers. Crews are on the scene investigating but no cause for the failure has yet been determined, nor has the restoration time. More information will be released as it becomes available.

City Light is also experiencing scattered small outages throughout its service area, affecting about 500 customers. The cause is likely due to stress to the system due to excessive heat.

The city department followed with a post confirming that power was restored around 9 PM:

The Capitol Hill outage has bee restored. It last lasted about 1.5 hours and affected 9,300 customers.

Originally, two feeder lines at City Light’s Capitol Hill East Pine substation failed, cutting power to 9,300 customers. Cause was equipment failure.

City Light is also experiencing scattered small outages throughout its service area, affecting about 300 customers. The cause is likely due to stress to the system due to excessive heat. Most customers should have power back on before midnight.

You can watch KING 5’s version of the story, here: