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The Shapinsay Sea Serpent off the Douche, Orkney (1905)
November 1905 · Off the Douche (Dishan Tower), Balfour, Shapinsay, Orkney, Scotland
United Kingdom
Cryptid · Creature · 11 sources
11Thinly documented
Seileag, the Loch Shiel creature: three humps seen from the steamer Clanranald opposite Gaskan
1905 · Loch Shiel, opposite Gaskan on the north shore, Lochaber, Highland, Scotland
United Kingdom
Cryptid · Creature · 19 sources
19Thinly documented
The Egryn Lights: Mary Jones and the Welsh Revival Lights
December 5, 1904 · Capel Egryn, Tal-y-bont, Dyffryn Ardudwy, Merionethshire (now Gwynedd), Wales
United Kingdom
UAP · Orb / light · 36 sources
39Partially documented
The USS Supply "Remarkable Meteors"
February 28, 1904 · Pacific Ocean, about 300 miles WSW of San Francisco (36°20′ N, 127°36′ W)
International waters
UAP · Formation · 16 sources
22Thinly documented
Captain White and the Falmouth tug Triton: the 100-ft sea serpent off the Longships (1903)
September 1903 · About 15 miles off Longships Lighthouse, Land's End, Cornwall
United Kingdom
Cryptid · Creature · 20 sources
15Thinly documented
The SS Fort Salisbury Sea Serpent
October 28, 1902 · Equatorial Atlantic, south of the Gulf of Guinea (lat. 5° 31' S, long. 4° 42' W)
International waters
Cryptid · Creature · 11 sources
15Thinly documented
The Big Wheel of Fire on the Grey Stone Road, Isle of Man (published 1902)
1902 · Ballakillowey, Rushen parish, Isle of Man
Isle of Man
UAP · Other · 18 sources
5Thinly documented
The Steamer Otetiani and the Seneca Lake Sea Serpent
July 14, 1900 · Seneca Lake, between Dresden and Willard, New York
United States
Cryptid · Creature · 19 sources
29Thinly documented
The Avalanche Sea Serpents of Hạ Long Bay
July 1897 · Hạ Long Bay and the Baie de Fai-Tsi-Long (Bái Tử Long Bay), Tonkin
Vietnam
Cryptid · Creature · 17 sources
26Thinly documented
The St. Augustine Monster (Octopus giganteus), Anastasia Island, 1896
November 30, 1896 · Anastasia Island, St. Augustine, St. Johns County, Florida
United States
Cryptid · Creature · 17 sources · 1 photos
44Partially documented
The SS Umfuli Sea Serpent
December 4, 1893 · Atlantic Ocean off the coast of West Africa, south of the Canary Islands (about 21°40′N, 17°30′W)
International waters
Cryptid · Creature · 11 sources
16Thinly documented
The HMS Caroline "Chinese Lanterns" off Quelpart (Jeju)
February 24, 1893 · At sea, sixteen to seventeen miles south of Quelpart (Jeju Island), North China Sea
South Korea
UAP · Orb / light · 19 sources
24Thinly documented
The schooner Madaline and the Lake Erie sea serpent
c. 1892 · Open Lake Erie, on the Buffalo, New York to Toledo, Ohio run
United States
Cryptid · Creature · 14 sources
16Thinly documented
Selina Lovell's Moha-moha at Sandy Cape
June 8, 1890 · Sandy Cape, Great Sandy Island (K'gari / Fraser Island), Queensland
Australia
Cryptid · Creature · 11 sources
18Thinly documented
The Resau Poltergeist (Der Spuk von Resau)
1888 · Resau, near Werder (Havel), Brandenburg
Germany
Paranormal · Other · 17 sources
22Thinly documented
The Lake Koshkonong sea serpent: A. I. Sherman and Charles Bartlett's rowboat chase (1887)
November 1887 · Northeast bay, Lake Koshkonong, near Fort Atkinson, Wisconsin
United States
Cryptid · Creature · 15 sources
18Thinly documented
The Deerness Mermaid, Newark Bay, Orkney
c. 1887 · Newark Bay, Deerness, East Mainland, Orkney, Scotland
United Kingdom
Cryptid · Creature · 19 sources
25Thinly documented
The Prospector's Skiff: First Report of the Wallowa Lake Monster
c. 1885 · Wallowa Lake, near Joseph, Oregon
United States
Cryptid · Creature · 18 sources
2Thinly documented
The Sunderland East End ghost panic (the "Great Ghost Hunt of Hendon")
October 29, 1883 · Robinson Terrace and Linden Street, Hendon (East End), Sunderland, Tyne and Wear
United Kingdom
Paranormal · Being / humanoid · 11 sources
18Thinly documented
Billy Dunn and the Lake Mendota sea serpent
June 22, 1883 · Lake Mendota, Madison, Wisconsin
United States
Cryptid · Creature · 16 sources
25Thinly documented
  • Central Intelligence Agency· 201 pages· 74 pages mention it
    • p. 16 …European NATO and the Warsaw Pact Figure 1 ,'- - "''i 'Fr,~'""' NNA TO countries Benes Sea Warsaw Pact countries Norwegian . t…
    • p. 72 …PO A ; re -t { - Black Sea Fleet ROMANI A -UGM (Dsevastopo - BUGRAFleet Caspian headquarters Black Sea -Sea 77629 1-79…
  • Central Intelligence Agency· 1992-02-11· 2 pages· 2 pages mention it
    • p. 1 …RADAR INDICATED AN INTRUDING PLANE IN THE WEST SEA AIRSPACE AT 10:05, BUT FIGHTERS SENT UP TO INVESTIGATE FOUND…
    • p. 2 …RADAR WHEN AN AIRPLANE CRASHES, WE ARE SEARCHING THE SEA WHERE THE OBJECT WAS LAST DETECTED ON RADAR, BUT SO…
  • Department of Transportation. Federal Aviation Administration.· 2023· 1 pages· 1 page mentions it
    • p. 1 …JAZZ 653 LATER REPORTED SAME UAP MOVING NORTH BOUND 13 ENE SEA. NO EVASIVE ACTION REPORTED. LEO NOTIFICATION NOT REPORTED…
  • Department of Transportation. Federal Aviation Administration.· 2023· 1 pages· 1 page mentions it
    • p. 1 …SEATTLE, WA/UFO-UAP ACTIVITY/1635P/SEATTLE ARTCC ADVISED ALASKA 688, B739, SEA - LAS, REPORTED A DARK OBJECT DESCRIBED AS…
  • All-domain Anomaly Resolution Office· 2 pages· 1 page mentions it
    • p. 1 …Middle East and the Mediterranean Sea (U) Date: 2022 and 2023 (U) Altitude: N/A (U) Shape: N/A (U…
  • Department of Transportation. Federal Aviation Administration.· 2023· 1 pages· 1 page mentions it
    • p. 1 …The unknown phenomenon was described as a sea of flashing white lights below their altitude. The lights were not very…

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