# December 12-15, 1957 — Sea of Japan / Misawa AFB — Sea of Japan / Jet Intercept

**URL:** https://uapdiscovery.discourse.group/t/december-12-15-1957-sea-of-japan-misawa-afb-sea-of-japan-jet-intercept/429
**Category:** Blue Book Unknowns
**Created:** [December 11, 2025, 10:40pm UTC](https://uapdiscovery.discourse.group/t/december-12-15-1957-sea-of-japan-misawa-afb-sea-of-japan-jet-intercept/429 "2025-12-11T22:40:33Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![jeffknox](https://avatars.discourse-cdn.com/v4/letter/j/e47c2d/32.png) [@jeffknox](https://uapdiscovery.discourse.group/u/jeffknox)
#### Post date: [December 11, 2025, 10:40pm UTC](https://uapdiscovery.discourse.group/t/december-12-15-1957-sea-of-japan-misawa-afb-sea-of-japan-jet-intercept/429/1 "2025-12-11T22:40:33Z")

</div>

![12121957-SeaOfJapan-BBSketch](https://canada1.discourse-cdn.com/flex011/uploads/uapdiscovery/original/2X/7/7e2163c12bc56e6df4e0963b77346c58e79e46d6.jpeg)

December 12-15, 1957 — Sea of Japan / Misawa AFB  
5:45 p.m. At least 13 witnesses see a bright light over the Sea of Japan. The object is tracked on radar and seen through binoculars. At 7:22 p.m., a scramble is ordered and two F-86D’s take off from Misawa Air Base, Japan. Multiple radar and visual sightings take place over the next three days. [Eberhart]

Record Card:

 ![12121957-SeaOfJapan-BBCard](https://canada1.discourse-cdn.com/flex011/uploads/uapdiscovery/original/2X/0/057575b8f59f1d09a1e0f8fa6e0a2e42fb7a7f26.jpeg)

Map:

 ![12121957-SeaOfJapan-Map](https://canada1.discourse-cdn.com/flex011/uploads/uapdiscovery/original/2X/f/fec63a140d0ac0c2865eef62ecf791778a22c49e.jpeg)

Photos taken a few days later, assumed to be the same object, but considered unlikely according to the AF.

 ![12121957-SeaOfJapan-Photo1](https://canada1.discourse-cdn.com/flex011/uploads/uapdiscovery/original/2X/8/850231f70c88070795f3823b126b462491495552.jpeg)

 ![12121957-SeaOfJapan-Photo2](https://canada1.discourse-cdn.com/flex011/uploads/uapdiscovery/original/2X/2/2acd5a0681c8d8f50a098a93725e8bd59e6bcac9.jpeg)

 ![12121957-SeaOfJapan-Photo3](https://canada1.discourse-cdn.com/flex011/uploads/uapdiscovery/original/2X/5/589f60d4ae5b879e9e7f3d1cd30cba4c5675ba0e.jpeg)

 ![12121957-SeaOfJapan-PhotoDetails](https://canada1.discourse-cdn.com/flex011/uploads/uapdiscovery/original/2X/8/8884ffddce576b7dca722307c43326e805d45d27.jpeg)

Gregory Howard Report:

 ![12121957-SeaOfJapan-BB-HowardReport-1](https://canada1.discourse-cdn.com/flex011/uploads/uapdiscovery/original/2X/6/6a9ecfb24382b1587123f376e3505eeed02c4d31.jpeg)

 ![12121957-SeaOfJapan-BB-HowardReport-2](https://canada1.discourse-cdn.com/flex011/uploads/uapdiscovery/original/2X/1/165d8a61f715c58b4ae6db607b9c90f21f69ba93.jpeg)

 ![12121957-SeaOfJapan-BB-HowardReport-3](https://canada1.discourse-cdn.com/flex011/uploads/uapdiscovery/original/2X/9/94ae2b4a726867a5c8f0c6033ce5c79a063fd599.jpeg)

Intercept Reports:

 ![12121957-SeaOfJapan-BB-InterceptReports-1](https://canada1.discourse-cdn.com/flex011/uploads/uapdiscovery/original/2X/1/12b9351aa71b4249df26961f0d3606392b0a0d8c.jpeg)

 ![12121957-SeaOfJapan-BB-InterceptReports-2](https://canada1.discourse-cdn.com/flex011/uploads/uapdiscovery/original/2X/9/92134903fcdf0cb3c94431dcb6387fe1708634db.jpeg)

Sources:  
Brad Sparks, Blue Books Unknowns Catalogue, Case 1302-1303, p. 261;

 ![12121957-SeaOfJapan-Sparks-Case1302-1303-p261](https://canada1.discourse-cdn.com/flex011/uploads/uapdiscovery/original/2X/8/8eb49f8f121ca69a045ea14f80f575bb2734d352.png)

NICAP, “Jets Scrambled After Radar/Visual UFO”;  
[Fairly complete BB file, albeit with much worse quality copies of the photos]

> **[UFO Report](http://www.nicap.org/571212misawa_dir.htm)**

Robert Powell, UFOs: A Scientist Explains What We Know (And Don’t Know), 2024, pp. 25–26;

 ![12121957-SeaOfJapan-PowellScientist-p25](https://canada1.discourse-cdn.com/flex011/uploads/uapdiscovery/original/2X/a/aceadeb1d87ed38cdeb8085398f0d302723e6845.png)

 ![12121957-SeaOfJapan-PowellScientist-p26](https://canada1.discourse-cdn.com/flex011/uploads/uapdiscovery/original/2X/a/a1e81ea9e75badc8d97a8004a132334fb33af63c.jpeg)

> **[Amazon.com: UFOs: A Scientist Explains What We Know (And Don’t Know):...](https://www.amazon.com/UFOs-Scientist-Explains-What-Know/dp/1538173581)**
>
> Amazon.com: UFOs: A Scientist Explains What We Know (And Don’t Know): 9781538173589: Powell, Robert: Books