This happened in In Indiana one whole town was out and you go about 100 yards down and there was power but its because the electrical circuit runs different ways and there is a lot of different electrical circuits around one town or city they all run different ways soo if one town went out the others didn't. it could of been to an accident or something to involve the poles to turn off my best bet is that they hit a breaker on accident.
this can be true as there are redundant power supplies and a lot of stuff is inter woven.
It differs from area to area.
When I was first married we lived in Astoria ,Queens New York in a small apartment. There was a large blackout most of Queens went out my entire neighborhood was dead.
But my refrigerator had power! It was illegally tapping an underground power line that did not feed into Astoria at all.
I had a free unmetered non-detectable powerline for 5.5 years.
It was in the late 80's early 90's it would have been nice for mining. I could run an s-2 for free.