Vacaville, CA, USA
A loud deep vibration heard above in sky sounding like a train going overhead but never passed by.
Report quality: Moderate61/100
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: 900s, a plausible sighting length
- Moderate witness text (98 characters)
- Location geocoded exactly
- 1 other report from the same city within 3 days
- When
- 2019-02-09
- Where
- Vacaville, CA, USA
- Shape
- Unknown
- Duration
- 15 minutes
- Geo
- 38.357, -121.988 · exact
- Slug
- unknown-over-vacaville-ca-2019-c5de31
Part of a wave
The Navy Encounters & the UAP Era
U.S. training ranges (Pacific off San Diego; Atlantic off Virginia), then worldwide reporting
The wave that renamed the subject. The USS Nimitz 'Tic Tac' encounter (November 2004: radar drops from 80,000 ft to sea level in seconds, pilot visual by Cmdr. David Fravor, FLIR video) stayed classified-adjacent until…
Local cluster
3 reports came out of Vacaville, CA in February 2019 alone — a local cluster.
In context
- Vacaville, CA has 47 sightings on file here.
- 2019 brought 510 reports from California.
Nearby in space & time
within 30 daysReport
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.