Boom over the Tri-Cities - Jul 20, 2026, 9:13 PM
Monday, July 20, 2026 at 9:13 PM · 8 hours ago
We need at least two reports that note which direction it came from (ideally from different spots) before we can triangulate an origin.
Add your direction →What it lines up with
Automatic cross-references. Suggestive, not proof.
Thayer Drive Substation (substation) - about 1.3 km from the estimated origin.
A USGS M1.07 earthquake 84 km away, 39h apart.
Conditions weren’t especially sound-carrying. (25°C, wind 2 km/h, 72% cloud)
night on a weekday.
First quarter (39% lit).
Transformer and substation faults set off both a boom and an outage. See who else nearby is out, and when it is coming back.
isthepowerout.comWhat people reported
Each number matches a dot on the map above.
What do you think it was?
Cast your vote. The data’s nearest match: substation - Thayer Drive Substation.
Discussion
Saw the same thing? Have a theory or evidence about what it was? Weigh in.