Humacao (Puerto Rico), Puerto Rico
I heard a very loud airplane engine like noise. I didn't pay much attention to it until I realized it had been about a minute and it ha
Report quality: Moderate55/100
This score reflects report-quality signals on file — how complete, corroborated, and precisely located the report is — not a claim about whether the sighting was a real craft.
- Duration parsed: 120s, a plausible sighting length
- Detailed witness text (135 characters)
- Location geocoded exactly
- No other reports from this city within 3 days
- When
- 1991-01-06
- Where
- Humacao (Puerto Rico), Puerto Rico
- Shape
- Circle
- Duration
- 2 minutes
- Geo
- 18.150, -65.827 · exact
- Slug
- circle-over-humacao-puerto-rico-1991-a1ee66
Part of a wave
The Belgian Triangle Wave
Belgium (Eupen, Wallonia, Brussels corridor)
The definitive black-triangle wave: silent, slow platforms with three corner lights, reported by gendarmes, air-traffic controllers, and thousands of citizens. On the night of March 30-31, 1990, Belgian F-16s scrambled…
In context
- Humacao (Puerto Rico), Puerto Rico shows up 2 times across the archive.
- 1 reports came from Puerto Rico in 1991.
- In the 1990s, 6.7% of reports described a circle — the all-time rate is 10.6%.
Report
Full narrative lands with dossier import for famous cases, or the NUFORC free-text summary above for standard reports. This shell is SSR-ready: one D1 row (including connections_json) per page.