Reports (numbered)Direction it came fromEstimated origin (source)Earthquake (USGS)
Estimated origin - interesting, not definitive
Triangulated from 1 directional report. The red marker is our best guess at the source; the blue dots are where people were. It sharpens as more people report which way it came from.
Confidence:29% · Lowloudness falloff
What it lines up with
Automatic cross-references. Suggestive, not proof.
📍Nearest known sourcestrong
Stevens Drive Substation (substation) - about 1.3 km from the estimated origin.
🌤️Conditions
Conditions weren’t especially sound-carrying. (25°C, wind 4 km/h, 0% cloud)
🕒Timing
evening on a weekend.
🌕Moon
First quarter (45% lit).
What people reported
Each number matches a dot on the map above.
1
Heard a boom · intensity 3/5
anon-9031 · Jun 21, 9:36 PM · 14 hours ago
2
Heard a boom · intensity 3/5
anon-1176 · Jun 21, 9:12 PM · 15 hours ago
Hollow sounding explosion, almost felt like it came from under the apartment.
3
Heard a boom · intensity 3/5
anon-4823 · Jun 21, 8:55 PM · 15 hours ago
4
Heard a boom · intensity 3/5
anon-4823 · Jun 21, 8:53 PM · 15 hours ago
5
Boom + lights · intensity 2/5
anon-9031 · Jun 21, 9:05 PM · 15 hours ago
Heard a big boom & saw firework lights from blast. It was an ariel mortar, visually saw it.
6
Heard a boom · intensity 2/5
anon-4714 · Jun 21, 8:53 PM · 15 hours ago
7
Heard a boom · intensity 2/5 · from the W
anon-2791 · Jun 21, 8:53 PM · 15 hours ago
What do you think it was?
Cast your vote. The data’s nearest match: substation - Stevens Drive Substation.
0 votes so far.
Discussion
Saw the same thing? Have a theory or evidence about what it was? Weigh in.
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