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Boom over the Tri-Cities - Jun 18, 2026, 8:34 PM
Thursday, June 18, 2026 at 8:34 PM · 2 days ago
1 report1 contributor1 gave a direction
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.
🌤️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).
What people reported
Each number matches a dot on the map above.
1
Boom + lights · intensity 4/5 · from the NE
Jun 18, 8:34 PM · 2 days 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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