4:05 PM: Thanks for the tips! 38 homes on Genesee Hill are out of power, and this is the likely cause:

Gary sent that photo and reports, “It was a transformer explosion…..fire truck has the alley south of the 4400 block of Genesee cordoned off. The transformer is still smoldering.” According to the Seattle City Light outage map, this happened around 3:11 pm.

MIDNIGHT: Power’s been restored since our last check of the outage map a few hours ago.