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Boom over the Tri-Cities - Jun 18, 2026, 8:34 PM

Thursday, June 18, 2026 at 8:34 PM · 2 months ago

I felt this one too
1 report1 contributor1 gave a direction
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Reports (numbered)Direction it came fromEarthquake (USGS)
Origin not pinned yet

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.

📍Nearest known source

BNSF Pasco Rail Yard (rail) - about 8.1 km from the estimated origin.

🔴Seismic activity

A USGS M1.84 earthquake 11 km away, 31h apart.

🌤️Conditions

Conditions weren’t especially sound-carrying. (26°C, wind 6 km/h, 61% cloud)

🕒Timing

evening on a weekday.

🌕Moon

Waxing crescent (16% lit).

Heard the boom and lost power?

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.com

What people reported

Each number matches a dot on the map above.

1
Boom + lights · intensity 4/5 · from the NE
anon-7037 · Jun 18, 8:34 PM · 2 months ago

Loud windows shake, house jumps

What do you think it was?

Cast your vote. The data’s nearest match: rail - BNSF Pasco Rail Yard.

0 votes so far.

Discussion

Saw the same thing? Have a theory or evidence about what it was? Weigh in.

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