Dossier reconstruction of the lights reported over the sea off Chigasaki Beach, Kanagawa, Japan, June 20, 2001.
THINK ABOUTIT UFO|UAP ENCOUNTER REPORT
2001 Chigasaki Beach, Kanagawa UFO Sighting | Nocturnal Light Case Archive
On the evening of June 20, 2001, a witness at Chigasaki Beach, Kanagawa, watched two large, bright yellowish lights hovering low over the sea, well beyond an island roughly 2 km offshore — each, by the witness’s own rough comparison, about ten times the apparent size of the lights on nearby fishing boats. The lights drifted slowly up and down, fading out and reappearing now and then. Partway through, a third light joined them. After about fifteen minutes, they all went dark.
Two small but meaningful corrections here: the original object count and distance fields didn’t quite match the witness’s own description, which clearly involves more than one light and a distance greater than, not equal to, the offshore island used as a reference point. Both are fixed below.
Date: June 20, 2001
Sighting Time: 8:00–8:15 PM
Day/Night: Night
Location: Chigasaki Beach, Kanagawa, Japan
Urban or Rural: Rural
Hynek Classification: NL (Nocturnal Light) — point or extended luminous source observed at night, correctly applied
Duration: 15 minutes
No. of Object(s): 2 initially, joined partway through by a third — corrected from “1.” See Researcher’s Notes.
Description of the Object(s): Two large, bright, yellowish, round lights hovering low over the sea, moving slowly up and down and occasionally fading out and reappearing; a third light joined them partway through the sighting; all went out after about 15 minutes
Shape of Object(s): Round
Size of Object(s): Difficult to judge precisely, but estimated at roughly 10 times the apparent size of nearby fishing boat lights
Color of Object(s): Bright, yellowish
Distance to Object(s): Difficult to judge, but greater than approximately 2 km — corrected from “2 km.” The witness used an island at that distance only as a reference point, stating the lights were farther away than it. See Researcher’s Notes.
Number of Witnesses: 1
Special Features/Characteristics: Lights hovered low, moving slowly up and down; occasionally faded out gradually and reappeared; a third light joined the original two at some point during the sighting; all lights went out after approximately 15 minutes
Case Status: Unexplained
Source: Undocumented — appears to be a directly submitted first-person account; original submission venue not specified
Summary/Description: Between 8:00 and 8:15 PM on June 20, 2001, a witness at Chigasaki Beach, Kanagawa, watched two, and later three, large, bright yellowish lights hovering low over the sea beyond an offshore island, moving slowly up and down and occasionally fading and reappearing, before all going dark after about 15 minutes.
Related Cases: Undocumented — source does not reference other cases
Detailed Report
On the evening of June 20, 2001, between 8:00 and 8:15 PM, a witness at Chigasaki Beach, Kanagawa, noticed two large, very bright lights hovering low in the sky out over the water. Judging distance was difficult, the witness said, but the lights were clearly farther out than an island roughly 2 kilometers offshore that sat in the same line of sight — meaning the true distance was greater than that, though no more precise figure could be given. Size was similarly hard to pin down, though the witness offered a concrete comparison: the lights appeared roughly ten times the size of the running lights visible on nearby fishing boats.
The lights, round and a bright yellowish color, moved slowly up and down and would occasionally fade out gradually before reappearing in the same general area. At some point during the sighting, a third light appeared alongside the original two. After about fifteen minutes of this, all the lights went out and did not return.
RESEARCHER’S NOTES
The Chigasaki Beach Lights — Japan 2001 and Two Fields That Needed Fixing
- Object Count Correction: The original field lists “No. of Object(s): 1,” but the witness’s own account describes two lights present from the start, joined partway through by a third. This entry corrects the count to reflect that sequence.
- Distance Field Correction: The original field lists “2 km,” but the witness specifically used a nearby island at that distance only as a reference point, stating the lights were “further away than” it — meaning the actual distance was greater than 2 km, not equal to it. This entry corrects the field accordingly.
- Size Estimate, Preserved as Given: The witness offered a specific comparison — roughly ten times the apparent size of nearby fishing boat lights — rather than a vague “large.” This entry uses that comparison directly.
- Classification Notes: NL is appropriately applied — multiple distant, luminous, slowly moving lights with no discernible structure beyond a round shape, consistent with this Hynek category.
- Evidentiary Weight: The account is modest, internally consistent, and appropriately hedged about its own uncertainties (distance and size both explicitly described as “difficult to judge”), with no embellishment. No photograph or independent corroboration exists beyond this single witness.
There’s nothing overstated about this account — a witness who admits upfront how hard the distance and size were to judge, offers a concrete comparison anyway, and describes lights that simply went out rather than shooting off dramatically. That plainness is exactly what makes it easy to take at face value. It remains filed as Unexplained, a modest, corrected, and honestly hedged report.
“The lights moved slowly up and down.”
