CaseTriangle1989

San Jose, CA, USA

Post earthquake flying Triangle gave us a quick visit.

Report quality: Moderate58/100

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: 10s, a plausible sighting length
  • Brief witness text (54 characters)
  • Location geocoded exactly
  • 1 other report from the same city within 3 days
When
1989-10-17
Where
San Jose, CA, USA
Shape
Triangle
Duration
10 sec
Geo
37.339, -121.895 · exact
Slug
triangle-over-san-jose-ca-1989-d6b799
Wave

Part of a wave

  • Historical wave1989–1991

    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

  • San Jose, CA shows up 277 times across the archive.
  • 32 reports came from California in 1989.
  • In the 1980s, 12% of reports described a triangle — the all-time rate is 9%.

Nearby in space & time

within 30 days

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.