Walnut Creek, CA, USA
Diamond shaped object, very low in the sky. Went inside for half an hour, returned it was gone.
Report quality: Moderate51/100
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: 600s, a plausible sighting length
- Moderate witness text (95 characters)
- Location geocoded exactly
- No other reports from this city within 3 days
- When
- 2009-01-13
- Where
- Walnut Creek, CA, USA
- Shape
- Diamond
- Duration
- 10 minutes
- Geo
- 37.906, -122.065 · exact
- Slug
- diamond-over-walnut-creek-ca-2009-54bbcd
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…
In context
- Walnut Creek, CA has 26 sightings on file here.
- 2009 brought 647 reports from California.
- The 2000s skewed 1.6% diamond reports; the archive-wide figure is 1.4%.
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.