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Shape / form From year To year Country Time of day Witnesses Evidence Status Duration Sound Colour Motion Lights Sources include Min photos Min videos Min sources Min score

3D model Narrated

“Hokkaido”

Stories5

Issie, the Lake Ikeda Monster: The Kawaji Family Sighting

September 3, 1978 · Lake Ikeda, Ikeda-Isaki district, Ibusuki City, Kagoshima Prefecture

Japan

Cryptid · Creature · 32 sources

30Partially documented

The Zuiyō Maru Carcass ("New Nessie")

April 25, 1977 · Pacific Ocean, east of Christchurch, South Island, New Zealand

New Zealand

Cryptid · Creature · 20 sources · 4 photos

42Partially documented

The Nikoro Incident: Yoshihiro Fujiwara and the Octopus-Like Beings of Kitami, 1974

April 6, 1974 · Nikoro, Kitami City, Hokkaido

Japan

UAP · Being / humanoid · 19 sources

13Thinly documented

The Kussie mass sighting at Lake Kussharo

c. 1973 · Mount Mokoto, overlooking Lake Kussharo, Teshikaga, Hokkaido

Japan

Cryptid · Creature · 20 sources

20Thinly documented

F-94 and Ground Radar Sighting at Nemuro, Hokkaido, 1953

February 7, 1953 · Nemuro AF Detachment, Nemuro, Hokkaido (also listed as "Korean area" and "Okinawa")

Japan

UAP · Unknown · 12 sources

40Partially documented

Names2

Albert M. Chop Person · 3 stories
He spoke for Project Blue Book, from the Air Force press desk.
Thayer Person · 3 stories
Gordon D.

Documents9 · see all

Soviet Commentary List for 15 Jul 1991 FOIA release

Central Intelligence Agency· 1991-07-15· 2 pages· 1 page mentions it
- p. 1 …SOVIET PANORAMA PROGRAM ON RSFSR-HOKKAIDO COOPERATION, EXPLAINS POSSIBILITY OF JOINT VENTURES, CITES HOKKAIDO SIDE LDRS DESCRIBING ITS PROGRESS (7…
Soviet Commentary List for 16 Jul 1991 FOIA release

Central Intelligence Agency· 1991-07-16· 2 pages· 1 page mentions it
- p. 1 …RSFSR-HOKKAIDO COOP (7.5 MIN); RECENT JAP INDUST FAIR (6.5 MIN); REPORT ON RECENT SOV-JAP TRADE SYMPOSIUM…
CIA-UAP-003, The Central Intelligence Agency and Overhead Reconnaissance; The U-2 and OXCART Programs, 1954-1974 Official release

Central Intelligence Agency· 1954· 406 pages· 2 pages mention it
- p. 17 …when its reconnaissance aircraft began violating Japanese airspace over Hokkaido, the northernmost Japanese home island. Two months later, on 7…
- p. 380 …HIGH WIRE 164 Hitsman, Roger 209 Hitchcock, Alfred 29 Hokkaido, Japan 4 Holcomb. William 285 Hollywood, California 29 Hong Kong…
The Central Intelligence Agency and Overhead Reconnaissance; the U-2 and Oxcart Programs, 1954-1974 FOIA release

Central Intelligence Agency· 1900-01-01· 406 pages· 2 pages mention it
- p. 17 …when its reconnaissance aircraft began violating Japanese airspace over Hokkaido, the northernmost Japanese home island. Two months later, on 7…
- p. 380 …HIGH WIRE 164 Hilsman, Roger 209 Hitchcock, Alfred 29 Hokkaido, Japan 4 Holcomb, William 285 Hollywood, California 29 Hong Kong…
/specialCollection/MissileGap/1992/1992-04-01.pdf FOIA release

Central Intelligence Agency· 406 pages· 1 page mentions it
- p. 17 …when its reconnaissance aircraft began violating Japanese airspace over Hokkaido, the northernmost Japanese home island. Two months later, on 7…
CIA/CSI/ History Staff Monograph, The Central Intelligence Agency and Overhead Reconnaissance: The U-2 and Oxcart Programs, 16 July 2002. FOIA release

Central Intelligence Agency· 406 pages· 1 page mentions it
- p. 17 …when its reconnaissance aircraft began violating Japanese airspace over Hokkaido, the northernmost Japanese home island. Two months later, on 7…

All 9 documents →