Kōfu incident
Two seven-year-old boys in Kōfu, Japan, said a craft landed in a vineyard and a being tapped one of them on the shoulder.
1975 CE · 35.66, 138.57 · status: account
The account
On 23 February 1975 Katsuhiro Yamahata and Masato Kawano, roller-skating near their housing estate, saw two orange objects; one landed among the grapevines, a ladder came down, and a figure walked out making sounds like a tape recorder running backward. Their mothers reported a pulsing orange light at the spot.
The sceptical view
The case rests on young children's testimony; an eight-year-old classmate saw only a glinting object in the sky.
The researched reading
Two young boys’ encounter story supported only by an orange light seen by adults. Imagination or misread lights are more likely.
| Explanation | Weight | Why |
|---|---|---|
| Perception, memory or mind | 36% | Seven-year-olds blend fantasy and observation easily, especially when retelling to excited adults and press. |
| Something known, misidentified | 18% | Orange lights seen by the boys and their mothers could be aircraft or helicopter lights over the vineyards. |
| Genuinely anomalous | 16% | The boys’ consistent descriptions and the mothers’ independent report of a pulsing light keep some room. |
| Undetermined | 15% | The share the reading had given to fabrication on doubt rather than evidence: the record does not settle it either way. |
| A hoax or fabrication | 5% | Two boys playing could have invented or embellished the encounter; an older classmate saw only a glint. |
| A known natural phenomenon | 4% | A sunset glint could explain the light only. |
| A poorly understood natural phenomenon | 4% | A rare luminous phenomenon could explain the orange light. |
| Secret human technology | 2% | No military activity linked. |
Official position: No official investigation.