Declassified UFO / UAP Document
Luminous Sightings off the Hokkaido Coast
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AI-Generated Summary
This intelligence report documents unidentified luminous sightings off the Hokkaido coast in 1957 and 1958. Official investigations found insufficient data to explain the phenomena and no evidence of associated seismic or barometric events.
This intelligence report, prepared by Captain Anthony M. Pereira of the 5004th Air Intelligence Service Squadron, details luminous sightings reported by Japanese fishermen off the coast of Hokkaido. The document serves as a record for Project 10073. The primary incident occurred on 31 October 1957, at 1830 hours local time, where a stationary 'pillar of flame' approximately 100 miles high was observed for 15 minutes. The object reportedly shifted in color from red to blue before vanishing. The report also references two additional sightings from March 1958, involving luminous bodies observed near Kutsugata Island and Zapadnaya (Onnerusu). In these instances, the colors were not clearly identified. The document further addresses an alleged explosion reported on 19 February 1958, which was detected by a US radar site. However, after consulting with the Japanese Meteorological Agency and the Maritime Safety Board, investigators concluded there was no barometric or seismic evidence to support the occurrence of an actual explosion. The report explicitly states that the Maritime Safety Board recorded these incidents but declined to conduct further investigations. The overall conclusion for the 31 October sighting is that there was insufficient data for a formal evaluation.
Pillar of flame 100 miles high observed in the West by fishermen for duration of 15 minutes. Color changed from red to blue then it disappeared.
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Official Assessment
Insufficient data for evaluation
The report documents three luminous sightings reported by Japanese fishermen off the Hokkaido coast. The specific incident on 31 October 1957 involved a stationary pillar of flame that changed color from red to blue before disappearing. Subsequent investigations into other sightings in February 1958, including a suspected explosion, found no evidence of seismic or barometric anomalies indicative of an actual explosion.
Witnesses
- FishermenMaritime Safety Board
Key Persons
- Noboru ItoChief of the Aviation Administration Section